Commit | Line | Data |
---|---|---|
64e98de1 | 1 | This patch adds support for extended attributes. |
bbdff76a | 2 | |
03019e41 | 3 | To use this patch, run these commands for a successful build: |
bbdff76a | 4 | |
03019e41 | 5 | patch -p1 <patches/xattrs.diff |
27e96866 | 6 | ./prepare-source |
64e98de1 | 7 | ./configure |
bbdff76a WD |
8 | make |
9 | ||
64e98de1 | 10 | CAUTION: this patch has been recently reworked, and needs more testing! |
03019e41 | 11 | |
9a7eef96 WD |
12 | --- old/Makefile.in |
13 | +++ new/Makefile.in | |
1ed0b5c9 | 14 | @@ -28,13 +28,13 @@ VERSION=@VERSION@ |
bbdff76a WD |
15 | |
16 | HEADERS=byteorder.h config.h errcode.h proto.h rsync.h smb_acls.h lib/pool_alloc.h | |
87a38eea | 17 | LIBOBJ=lib/wildmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o lib/md5.o \ |
bbdff76a | 18 | - lib/permstring.o lib/pool_alloc.o lib/sysacls.o @LIBOBJS@ |
64e98de1 | 19 | + lib/permstring.o lib/pool_alloc.o lib/sysacls.o lib/sysxattrs.o @LIBOBJS@ |
4bf6f8c7 WD |
20 | ZLIBOBJ=zlib/deflate.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o \ |
21 | zlib/trees.o zlib/zutil.o zlib/adler32.o zlib/compress.o zlib/crc32.o | |
590329e5 WD |
22 | OBJS1=flist.o rsync.o generator.o receiver.o cleanup.o sender.o exclude.o \ |
23 | util.o main.o checksum.o match.o syscall.o log.o backup.o | |
24 | OBJS2=options.o io.o compat.o hlink.o token.o uidlist.o socket.o \ | |
610969d1 | 25 | - fileio.o batch.o clientname.o chmod.o acls.o |
64e98de1 | 26 | + fileio.o batch.o clientname.o chmod.o acls.o xattrs.o |
bbdff76a WD |
27 | OBJS3=progress.o pipe.o |
28 | DAEMON_OBJ = params.o loadparm.o clientserver.o access.o connection.o authenticate.o | |
29 | popt_OBJS=popt/findme.o popt/popt.o popt/poptconfig.o \ | |
9a7eef96 WD |
30 | --- old/backup.c |
31 | +++ new/backup.c | |
526184b9 | 32 | @@ -23,6 +23,7 @@ |
70891d26 | 33 | extern int verbose; |
93d6ca6d WD |
34 | extern int am_root; |
35 | extern int preserve_acls; | |
36 | +extern int preserve_xattrs; | |
37 | extern int preserve_devices; | |
38 | extern int preserve_specials; | |
39 | extern int preserve_links; | |
526184b9 | 40 | @@ -134,6 +135,9 @@ static int make_bak_dir(char *fullpath) |
0f6fb3c8 WD |
41 | #ifdef SUPPORT_ACLS |
42 | sx.acc_acl = sx.def_acl = NULL; | |
43 | #endif | |
44 | +#ifdef SUPPORT_XATTRS | |
45 | + sx.xattr = NULL; | |
46 | +#endif | |
47 | if (!(file = make_file(rel, NULL, NULL, 0, NO_FILTERS))) | |
48 | continue; | |
49 | #ifdef SUPPORT_ACLS | |
3e6568cf | 50 | @@ -143,7 +147,14 @@ static int make_bak_dir(char *fullpath) |
4306c620 | 51 | free_acl(&sx); |
0f6fb3c8 | 52 | } |
09cc6650 | 53 | #endif |
3e6568cf | 54 | - set_file_attrs(fullpath, file, NULL, 0); |
09cc6650 | 55 | +#ifdef SUPPORT_XATTRS |
0f6fb3c8 WD |
56 | + if (preserve_xattrs) { |
57 | + get_xattr(rel, &sx); | |
58 | + cache_xattr(file, &sx); | |
64e98de1 | 59 | + free_xattr(&sx); |
0f6fb3c8 | 60 | + } |
09cc6650 | 61 | +#endif |
3e6568cf | 62 | + set_file_attrs(fullpath, file, NULL, NULL, 0); |
0f6fb3c8 | 63 | free(file); |
bbdff76a | 64 | } |
3e6568cf | 65 | } |
64e98de1 | 66 | @@ -194,6 +205,9 @@ static int keep_backup(const char *fname |
0f6fb3c8 WD |
67 | #ifdef SUPPORT_ACLS |
68 | sx.acc_acl = sx.def_acl = NULL; | |
09cc6650 WD |
69 | #endif |
70 | +#ifdef SUPPORT_XATTRS | |
0f6fb3c8 | 71 | + sx.xattr = NULL; |
09cc6650 | 72 | +#endif |
bbdff76a | 73 | |
0f6fb3c8 WD |
74 | if (!(file = make_file(fname, NULL, NULL, 0, NO_FILTERS))) |
75 | return 1; /* the file could have disappeared */ | |
64e98de1 | 76 | @@ -210,6 +224,13 @@ static int keep_backup(const char *fname |
4306c620 | 77 | free_acl(&sx); |
0f6fb3c8 | 78 | } |
09cc6650 WD |
79 | #endif |
80 | +#ifdef SUPPORT_XATTRS | |
0f6fb3c8 WD |
81 | + if (preserve_xattrs) { |
82 | + get_xattr(fname, &sx); | |
83 | + cache_xattr(file, &sx); | |
64e98de1 | 84 | + free_xattr(&sx); |
0f6fb3c8 | 85 | + } |
09cc6650 | 86 | +#endif |
bbdff76a | 87 | |
0f6fb3c8 WD |
88 | /* Check to see if this is a device file, or link */ |
89 | if ((am_root && preserve_devices && IS_DEVICE(file->mode)) | |
3e6568cf WD |
90 | @@ -288,7 +309,7 @@ static int keep_backup(const char *fname |
91 | robust_unlink(fname); /* Just in case... */ | |
92 | } | |
93 | } | |
94 | - set_file_attrs(buf, file, NULL, 0); | |
95 | + set_file_attrs(buf, file, NULL, fname, 0); | |
96 | unmake_file(file); | |
97 | ||
98 | if (verbose > 1) { | |
99 | --- old/cleanup.c | |
100 | +++ new/cleanup.c | |
101 | @@ -142,7 +142,7 @@ NORETURN void _exit_cleanup(int code, co | |
102 | flush_write_file(cleanup_fd_w); | |
103 | close(cleanup_fd_w); | |
104 | } | |
105 | - finish_transfer(cleanup_new_fname, fname, NULL, | |
106 | + finish_transfer(cleanup_new_fname, fname, NULL, NULL, | |
107 | cleanup_file, 0, !partial_dir); | |
108 | } | |
109 | ||
fdf967c7 WD |
110 | --- old/compat.c |
111 | +++ new/compat.c | |
64e98de1 WD |
112 | @@ -43,6 +43,7 @@ extern int protocol_version; |
113 | extern int preserve_uid; | |
114 | extern int preserve_gid; | |
115 | extern int preserve_acls; | |
116 | +extern int preserve_xattrs; | |
117 | extern int preserve_hard_links; | |
118 | extern int need_messages_from_generator; | |
119 | extern int delete_mode, delete_before, delete_during, delete_after; | |
120 | @@ -65,6 +66,8 @@ void setup_protocol(int f_out,int f_in) | |
7e27b6c0 | 121 | preserve_gid = ++file_extra_cnt; |
fdf967c7 | 122 | if (preserve_acls && !am_sender) |
7e27b6c0 | 123 | preserve_acls = ++file_extra_cnt; |
64e98de1 | 124 | + if (preserve_xattrs) |
7e27b6c0 | 125 | + preserve_xattrs = ++file_extra_cnt; |
fdf967c7 WD |
126 | |
127 | if (remote_protocol == 0) { | |
128 | if (!read_batch) | |
64e98de1 WD |
129 | @@ -119,6 +122,13 @@ void setup_protocol(int f_out,int f_in) |
130 | protocol_version); | |
131 | exit_cleanup(RERR_PROTOCOL); | |
132 | } | |
133 | + if (preserve_xattrs) { | |
134 | + rprintf(FERROR, | |
135 | + "--xattrs requires protocol 30 or higher" | |
136 | + " (negotiated %d).\n", | |
137 | + protocol_version); | |
138 | + exit_cleanup(RERR_PROTOCOL); | |
139 | + } | |
140 | } | |
141 | ||
142 | if (delete_mode && !(delete_before+delete_during+delete_after)) { | |
9a7eef96 WD |
143 | --- old/configure.in |
144 | +++ new/configure.in | |
64e98de1 | 145 | @@ -891,6 +891,46 @@ samba_cv_HAVE_ACL_GET_PERM_NP=yes,samba_ |
4306c620 WD |
146 | esac |
147 | fi | |
bbdff76a WD |
148 | |
149 | +AC_CHECK_HEADERS(attr/xattr.h) | |
49de5440 | 150 | +AC_CHECK_HEADERS(sys/xattr.h) |
742a4103 | 151 | +AC_CHECK_HEADERS(sys/extattr.h) |
64e98de1 WD |
152 | + |
153 | +################################################# | |
154 | +# check for extended attribute support | |
bbdff76a | 155 | +AC_MSG_CHECKING(whether to support extended attributes) |
f787c90c | 156 | +AC_ARG_ENABLE(xattr-support, |
64e98de1 WD |
157 | + AC_HELP_STRING([--disable-xattr-support], |
158 | + [Turn off extended attribute support])) | |
159 | + | |
160 | +if test x"$enable_xattr_support" = x"no"; then | |
161 | + AC_MSG_RESULT(no) | |
162 | +else | |
163 | + case "$host_os" in | |
164 | + *linux*) | |
165 | + AC_MSG_RESULT(Using Linux xattrs) | |
166 | + AC_DEFINE(HAVE_LINUX_XATTRS, 1, [True if you have Linux xattrs]) | |
167 | + AC_DEFINE(SUPPORT_XATTRS, 1, [Define to 1 to add support for extended attributes]) | |
168 | + ;; | |
169 | + darwin*) | |
170 | + AC_MSG_RESULT(Using OS X xattrs) | |
171 | + AC_DEFINE(HAVE_OSX_XATTRS, 1, [True if you have Mac OS X xattrs]) | |
172 | + AC_DEFINE(SUPPORT_XATTRS, 1) | |
173 | + ;; | |
174 | + freebsd*) | |
175 | + AC_MSG_RESULT(Using FreeBSD extattrs) | |
176 | + AC_DEFINE(HAVE_FREEBSD_XATTRS, 1, [True if you have FreeBSD xattrs]) | |
177 | + AC_DEFINE(SUPPORT_XATTRS, 1) | |
178 | + ;; | |
179 | + *) | |
180 | + if test x"$enable_xattr_support" = x"yes"; then | |
181 | + AC_MSG_ERROR(Failed to find extended attribute support) | |
182 | + else | |
183 | + AC_MSG_RESULT(No extended attribute support found) | |
184 | + fi | |
185 | + ;; | |
186 | + esac | |
187 | +fi | |
bbdff76a WD |
188 | + |
189 | AC_CONFIG_FILES([Makefile lib/dummy zlib/dummy popt/dummy shconfig]) | |
190 | AC_OUTPUT | |
191 | ||
9a7eef96 WD |
192 | --- old/flist.c |
193 | +++ new/flist.c | |
87a38eea | 194 | @@ -43,6 +43,7 @@ extern int one_file_system; |
93d6ca6d WD |
195 | extern int copy_dirlinks; |
196 | extern int keep_dirlinks; | |
197 | extern int preserve_acls; | |
198 | +extern int preserve_xattrs; | |
199 | extern int preserve_links; | |
200 | extern int preserve_hard_links; | |
201 | extern int preserve_devices; | |
87a38eea | 202 | @@ -888,6 +889,10 @@ static struct file_struct *recv_file_ent |
4306c620 | 203 | if (preserve_acls && !S_ISLNK(mode)) |
0f6fb3c8 WD |
204 | receive_acl(file, f); |
205 | #endif | |
206 | +#ifdef SUPPORT_XATTRS | |
207 | + if (preserve_xattrs) | |
208 | + receive_xattr(file, f ); | |
209 | +#endif | |
210 | ||
524e5ed5 WD |
211 | if (S_ISREG(mode) || S_ISLNK(mode)) |
212 | stats.total_size += file_length; | |
87a38eea | 213 | @@ -1160,7 +1165,7 @@ static struct file_struct *send_file_nam |
fc068916 | 214 | int flags, int filter_flags) |
a071aea2 WD |
215 | { |
216 | struct file_struct *file; | |
217 | -#ifdef SUPPORT_ACLS | |
218 | +#if defined SUPPORT_ACLS || defined SUPPORT_XATTRS | |
219 | statx sx; | |
220 | #endif | |
221 | ||
87a38eea | 222 | @@ -1179,6 +1184,13 @@ static struct file_struct *send_file_nam |
0f6fb3c8 WD |
223 | return NULL; |
224 | } | |
09cc6650 WD |
225 | #endif |
226 | +#ifdef SUPPORT_XATTRS | |
e70fd6a8 | 227 | + if (preserve_xattrs && f >= 0) { |
0f6fb3c8 WD |
228 | + sx.xattr = NULL; |
229 | + if (get_xattr(fname, &sx) < 0) | |
230 | + return NULL; | |
231 | + } | |
09cc6650 | 232 | +#endif |
bbdff76a | 233 | |
a2f9a486 WD |
234 | maybe_emit_filelist_progress(flist->count + flist_count_offset); |
235 | ||
64e98de1 | 236 | @@ -1192,6 +1204,12 @@ static struct file_struct *send_file_nam |
4306c620 WD |
237 | free_acl(&sx); |
238 | } | |
09cc6650 WD |
239 | #endif |
240 | +#ifdef SUPPORT_XATTRS | |
64e98de1 WD |
241 | + if (preserve_xattrs) { |
242 | + F_XATTR(file) = send_xattr(&sx, f); | |
243 | + free_xattr(&sx); | |
244 | + } | |
09cc6650 | 245 | +#endif |
7c15d5aa | 246 | } |
bbdff76a WD |
247 | return file; |
248 | } | |
64e98de1 WD |
249 | --- old/generator.c |
250 | +++ new/generator.c | |
251 | @@ -36,6 +36,7 @@ extern int relative_paths; | |
252 | extern int implied_dirs; | |
253 | extern int keep_dirlinks; | |
254 | extern int preserve_acls; | |
255 | +extern int preserve_xattrs; | |
256 | extern int preserve_links; | |
257 | extern int preserve_devices; | |
258 | extern int preserve_specials; | |
3fbc83e8 | 259 | @@ -532,11 +533,19 @@ int unchanged_attrs(const char *fname, s |
64e98de1 WD |
260 | return 0; |
261 | } | |
262 | #endif | |
263 | +#ifdef SUPPORT_XATTRS | |
264 | + if (preserve_xattrs) { | |
265 | + if (!XATTR_READY(*sxp)) | |
266 | + get_xattr(fname, sxp); | |
267 | + if (xattr_diff(file, sxp, 0)) | |
268 | + return 0; | |
269 | + } | |
270 | +#endif | |
271 | ||
272 | return 1; | |
273 | } | |
3fbc83e8 WD |
274 | |
275 | -void itemize(const char *fname, struct file_struct *file, int ndx, int statret, | |
276 | +void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statret, | |
277 | statx *sxp, int32 iflags, uchar fnamecmp_type, | |
278 | const char *xname) | |
279 | { | |
77a7a0f0 | 280 | @@ -562,16 +571,29 @@ void itemize(const char *fname, struct f |
3fbc83e8 WD |
281 | #ifdef SUPPORT_ACLS |
282 | if (preserve_acls && !S_ISLNK(file->mode)) { | |
283 | if (!ACL_READY(*sxp)) | |
284 | - get_acl(fname, sxp); | |
285 | + get_acl(fnamecmp, sxp); | |
286 | if (set_acl(NULL, file, sxp) == 0) | |
64e98de1 WD |
287 | iflags |= ITEM_REPORT_ACL; |
288 | } | |
289 | #endif | |
77a7a0f0 | 290 | - } else |
64e98de1 WD |
291 | +#ifdef SUPPORT_XATTRS |
292 | + if (preserve_xattrs) { | |
293 | + if (!XATTR_READY(*sxp)) | |
3fbc83e8 | 294 | + get_xattr(fnamecmp, sxp); |
64e98de1 WD |
295 | + if (xattr_diff(file, sxp, 1)) |
296 | + iflags |= ITEM_REPORT_XATTR; | |
297 | + } | |
298 | +#endif | |
77a7a0f0 WD |
299 | + } else { |
300 | +#ifdef SUPPORT_XATTRS | |
301 | + if (preserve_xattrs && xattr_diff(file, NULL, 1)) | |
302 | + iflags |= ITEM_REPORT_XATTR; | |
303 | +#endif | |
64e98de1 | 304 | iflags |= ITEM_IS_NEW; |
77a7a0f0 | 305 | + } |
64e98de1 WD |
306 | |
307 | iflags &= 0xffff; | |
308 | - if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1 | |
309 | + if ((iflags & (SIGNIFICANT_ITEM_FLAGS|ITEM_REPORT_XATTR) || verbose > 1 | |
310 | || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) { | |
311 | if (protocol_version >= 29) { | |
312 | if (ndx >= 0) | |
77a7a0f0 | 313 | @@ -581,6 +603,10 @@ void itemize(const char *fname, struct f |
64e98de1 WD |
314 | write_byte(sock_f_out, fnamecmp_type); |
315 | if (iflags & ITEM_XNAME_FOLLOWS) | |
316 | write_vstring(sock_f_out, xname, strlen(xname)); | |
317 | +#ifdef SUPPORT_XATTRS | |
318 | + if (iflags & ITEM_REPORT_XATTR && !dry_run) | |
319 | + send_xattr_request(NULL, file, sock_f_out); | |
320 | +#endif | |
321 | } else if (ndx >= 0) { | |
322 | enum logcode code = logfile_format_has_i ? FINFO : FCLIENT; | |
323 | log_item(code, file, &stats, iflags, xname); | |
77a7a0f0 | 324 | @@ -855,14 +881,14 @@ static int try_dests_reg(struct file_str |
3fbc83e8 WD |
325 | if (preserve_hard_links && F_IS_HLINKED(file)) |
326 | finish_hard_link(file, fname, &sxp->st, itemizing, code, j); | |
327 | if (itemizing && (verbose > 1 || stdout_format_has_i > 1)) { | |
328 | - itemize(fname, file, ndx, 1, sxp, | |
329 | + itemize(cmpbuf, file, ndx, 1, sxp, | |
330 | ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS, | |
331 | 0, ""); | |
332 | } | |
333 | } else | |
334 | #endif | |
335 | if (itemizing) | |
336 | - itemize(fname, file, ndx, 0, sxp, 0, 0, NULL); | |
337 | + itemize(cmpbuf, file, ndx, 0, sxp, 0, 0, NULL); | |
338 | if (verbose > 1 && maybe_ATTRS_REPORT) | |
339 | rprintf(FCLIENT, "%s is uptodate\n", fname); | |
340 | return -2; | |
77a7a0f0 | 341 | @@ -879,9 +905,13 @@ static int try_dests_reg(struct file_str |
3fbc83e8 WD |
342 | } |
343 | return -1; | |
3e6568cf | 344 | } |
3fbc83e8 | 345 | + set_file_attrs(fname, file, NULL, cmpbuf, 0); |
3e6568cf | 346 | if (itemizing) |
3fbc83e8 | 347 | - itemize(fname, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL); |
3e6568cf | 348 | - set_file_attrs(fname, file, NULL, 0); |
3fbc83e8 WD |
349 | + itemize(cmpbuf, file, ndx, 0, sxp, ITEM_LOCAL_CHANGE, 0, NULL); |
350 | +#ifdef SUPPORT_XATTRS | |
351 | + if (preserve_xattrs) | |
352 | + xattr_clear_locals(file); | |
353 | +#endif | |
3e6568cf WD |
354 | if (maybe_ATTRS_REPORT |
355 | && ((!itemizing && verbose && match_level == 2) | |
356 | || (verbose > 1 && match_level == 3))) { | |
77a7a0f0 | 357 | @@ -1029,7 +1059,7 @@ static int try_dests_non(struct file_str |
3fbc83e8 WD |
358 | : ITEM_LOCAL_CHANGE |
359 | + (match_level == 3 ? ITEM_XNAME_FOLLOWS : 0); | |
360 | char *lp = match_level == 3 ? "" : NULL; | |
361 | - itemize(fname, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp); | |
362 | + itemize(cmpbuf, file, ndx, 0, sxp, chg + ITEM_MATCHED, 0, lp); | |
363 | } | |
364 | if (verbose > 1 && maybe_ATTRS_REPORT) { | |
365 | rprintf(FCLIENT, "%s%s is uptodate\n", | |
77a7a0f0 | 366 | @@ -1112,6 +1142,9 @@ static void recv_generator(char *fname, |
64e98de1 WD |
367 | #ifdef SUPPORT_ACLS |
368 | sx.acc_acl = sx.def_acl = NULL; | |
369 | #endif | |
370 | +#ifdef SUPPORT_XATTRS | |
371 | + sx.xattr = NULL; | |
372 | +#endif | |
373 | if (dry_run > 1) { | |
374 | if (fuzzy_dirlist) { | |
375 | flist_free(fuzzy_dirlist); | |
77a7a0f0 | 376 | @@ -1224,7 +1257,7 @@ static void recv_generator(char *fname, |
3e6568cf WD |
377 | goto cleanup; |
378 | } | |
379 | } | |
380 | - if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, 0) | |
381 | + if (set_file_attrs(fname, file, real_ret ? NULL : &real_sx, NULL, 0) | |
382 | && verbose && code != FNONE && f_out != -1) | |
383 | rprintf(code, "%s/\n", fname); | |
384 | if (real_ret != 0 && one_file_system) | |
77a7a0f0 | 385 | @@ -1278,9 +1311,9 @@ static void recv_generator(char *fname, |
3fbc83e8 WD |
386 | else if ((len = readlink(fname, lnk, MAXPATHLEN-1)) > 0 |
387 | && strncmp(lnk, sl, len) == 0 && sl[len] == '\0') { | |
3e6568cf | 388 | /* The link is pointing to the right place. */ |
3fbc83e8 | 389 | + set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT); |
3e6568cf WD |
390 | if (itemizing) |
391 | itemize(fname, file, ndx, 0, &sx, 0, 0, NULL); | |
392 | - set_file_attrs(fname, file, &sx, maybe_ATTRS_REPORT); | |
3e6568cf WD |
393 | #ifdef SUPPORT_HARD_LINKS |
394 | if (preserve_hard_links && F_IS_HLINKED(file)) | |
395 | finish_hard_link(file, fname, &sx.st, itemizing, code, -1); | |
77a7a0f0 | 396 | @@ -1317,7 +1350,7 @@ static void recv_generator(char *fname, |
3e6568cf WD |
397 | rsyserr(FERROR, errno, "symlink %s -> \"%s\" failed", |
398 | full_fname(fname), sl); | |
399 | } else { | |
400 | - set_file_attrs(fname, file, NULL, 0); | |
401 | + set_file_attrs(fname, file, NULL, NULL, 0); | |
402 | if (itemizing) { | |
403 | itemize(fname, file, ndx, statret, &sx, | |
404 | ITEM_LOCAL_CHANGE, 0, NULL); | |
77a7a0f0 | 405 | @@ -1357,9 +1390,9 @@ static void recv_generator(char *fname, |
3fbc83e8 WD |
406 | && BITS_EQUAL(sx.st.st_mode, file->mode, _S_IFMT) |
407 | && sx.st.st_rdev == rdev) { | |
3e6568cf | 408 | /* The device or special file is identical. */ |
3fbc83e8 | 409 | + set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT); |
3e6568cf WD |
410 | if (itemizing) |
411 | itemize(fname, file, ndx, 0, &sx, 0, 0, NULL); | |
412 | - set_file_attrs(fname, file, &sx, maybe_ATTRS_REPORT); | |
3e6568cf WD |
413 | #ifdef SUPPORT_HARD_LINKS |
414 | if (preserve_hard_links && F_IS_HLINKED(file)) | |
415 | finish_hard_link(file, fname, &sx.st, itemizing, code, -1); | |
77a7a0f0 | 416 | @@ -1399,7 +1432,7 @@ static void recv_generator(char *fname, |
3e6568cf WD |
417 | rsyserr(FERROR, errno, "mknod %s failed", |
418 | full_fname(fname)); | |
419 | } else { | |
420 | - set_file_attrs(fname, file, NULL, 0); | |
421 | + set_file_attrs(fname, file, NULL, NULL, 0); | |
422 | if (itemizing) { | |
423 | itemize(fname, file, ndx, statret, &sx, | |
424 | ITEM_LOCAL_CHANGE, 0, NULL); | |
77a7a0f0 | 425 | @@ -1529,9 +1562,9 @@ static void recv_generator(char *fname, |
3fbc83e8 WD |
426 | do_unlink(partialptr); |
427 | handle_partial_dir(partialptr, PDIR_DELETE); | |
3e6568cf | 428 | } |
3fbc83e8 | 429 | + set_file_attrs(fname, file, &sx, NULL, maybe_ATTRS_REPORT); |
3e6568cf WD |
430 | if (itemizing) |
431 | itemize(fnamecmp, file, ndx, statret, &sx, 0, 0, NULL); | |
432 | - set_file_attrs(fname, file, &sx, maybe_ATTRS_REPORT); | |
3e6568cf WD |
433 | #ifdef SUPPORT_HARD_LINKS |
434 | if (preserve_hard_links && F_IS_HLINKED(file)) | |
435 | finish_hard_link(file, fname, &sx.st, itemizing, code, -1); | |
77a7a0f0 | 436 | @@ -1636,6 +1669,10 @@ static void recv_generator(char *fname, |
64e98de1 WD |
437 | if (preserve_acls) |
438 | free_acl(&real_sx); | |
439 | #endif | |
440 | +#ifdef SUPPORT_XATTRS | |
441 | + if (preserve_xattrs) | |
442 | + free_xattr(&real_sx); | |
443 | +#endif | |
444 | } | |
445 | ||
446 | if (!do_xfers) { | |
77a7a0f0 | 447 | @@ -1657,7 +1694,7 @@ static void recv_generator(char *fname, |
3e6568cf WD |
448 | |
449 | if (f_copy >= 0) { | |
450 | close(f_copy); | |
451 | - set_file_attrs(backupptr, back_file, NULL, 0); | |
452 | + set_file_attrs(backupptr, back_file, NULL, NULL, 0); | |
453 | if (verbose > 1) { | |
454 | rprintf(FINFO, "backed up %s to %s\n", | |
455 | fname, backupptr); | |
77a7a0f0 | 456 | @@ -1672,6 +1709,10 @@ static void recv_generator(char *fname, |
64e98de1 WD |
457 | if (preserve_acls) |
458 | free_acl(&sx); | |
459 | #endif | |
460 | +#ifdef SUPPORT_XATTRS | |
461 | + if (preserve_xattrs) | |
462 | + free_xattr(&sx); | |
463 | +#endif | |
464 | return; | |
465 | } | |
466 | ||
467 | --- old/lib/sysxattrs.c | |
468 | +++ new/lib/sysxattrs.c | |
bdeab877 | 469 | @@ -0,0 +1,135 @@ |
dc52bc1a WD |
470 | +/* |
471 | + * Extended attribute support for rsync. | |
472 | + * | |
473 | + * Copyright (C) 2004 Red Hat, Inc. | |
474 | + * Written by Jay Fenlason. | |
475 | + * | |
476 | + * This program is free software; you can redistribute it and/or modify | |
477 | + * it under the terms of the GNU General Public License as published by | |
478 | + * the Free Software Foundation; either version 2 of the License, or | |
479 | + * (at your option) any later version. | |
480 | + * | |
481 | + * This program is distributed in the hope that it will be useful, | |
482 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
483 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
484 | + * GNU General Public License for more details. | |
485 | + * | |
486 | + * You should have received a copy of the GNU General Public License along | |
487 | + * with this program; if not, write to the Free Software Foundation, Inc., | |
488 | + * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
489 | + */ | |
bbdff76a WD |
490 | + |
491 | +#include "rsync.h" | |
64e98de1 | 492 | +#include "sysxattrs.h" |
bbdff76a | 493 | + |
56473cb9 WD |
494 | +#ifdef SUPPORT_XATTRS |
495 | + | |
09cc6650 | 496 | +#if defined HAVE_LINUX_XATTRS |
bbdff76a WD |
497 | + |
498 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size) | |
499 | +{ | |
500 | + return lgetxattr(path, name, value, size); | |
501 | +} | |
502 | + | |
8627d8a2 WD |
503 | +ssize_t sys_fgetxattr(int filedes, const char *name, void *value, size_t size) |
504 | +{ | |
0bac098f | 505 | + return fgetxattr(filedes, name, value, size); |
8627d8a2 WD |
506 | +} |
507 | + | |
742a4103 | 508 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size) |
bbdff76a | 509 | +{ |
742a4103 | 510 | + return lsetxattr(path, name, value, size, 0); |
bbdff76a WD |
511 | +} |
512 | + | |
a74926e4 WD |
513 | +int sys_lremovexattr(const char *path, const char *name) |
514 | +{ | |
515 | + return lremovexattr(path, name); | |
516 | +} | |
517 | + | |
bbdff76a WD |
518 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size) |
519 | +{ | |
520 | + return llistxattr(path, list, size); | |
521 | +} | |
522 | + | |
49de5440 WD |
523 | +#elif HAVE_OSX_XATTRS |
524 | + | |
525 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size) | |
526 | +{ | |
527 | + return getxattr(path, name, value, size, 0, XATTR_NOFOLLOW); | |
528 | +} | |
529 | + | |
8627d8a2 WD |
530 | +ssize_t sys_fgetxattr(int filedes, const char *name, void *value, size_t size) |
531 | +{ | |
0bac098f | 532 | + return fgetxattr(filedes, name, value, size, 0, 0); |
8627d8a2 WD |
533 | +} |
534 | + | |
742a4103 | 535 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size) |
49de5440 | 536 | +{ |
742a4103 | 537 | + return setxattr(path, name, value, size, 0, XATTR_NOFOLLOW); |
49de5440 WD |
538 | +} |
539 | + | |
a74926e4 WD |
540 | +int sys_lremovexattr(const char *path, const char *name) |
541 | +{ | |
542 | + return removexattr(path, name, XATTR_NOFOLLOW); | |
543 | +} | |
544 | + | |
49de5440 WD |
545 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size) |
546 | +{ | |
547 | + return listxattr(path, list, size, XATTR_NOFOLLOW); | |
548 | +} | |
549 | + | |
742a4103 WD |
550 | +#elif HAVE_FREEBSD_XATTRS |
551 | + | |
552 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size) | |
553 | +{ | |
554 | + return extattr_get_link(path, EXTATTR_NAMESPACE_USER, name, value, size); | |
555 | +} | |
556 | + | |
557 | +ssize_t sys_fgetxattr(int filedes, const char *name, void *value, size_t size) | |
558 | +{ | |
559 | + return extattr_get_fd(filedes, EXTATTR_NAMESPACE_USER, name, value, size); | |
560 | +} | |
561 | + | |
562 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size) | |
563 | +{ | |
564 | + return extattr_set_link(path, EXTATTR_NAMESPACE_USER, name, value, size); | |
565 | +} | |
566 | + | |
567 | +int sys_lremovexattr(const char *path, const char *name) | |
568 | +{ | |
569 | + return extattr_delete_link(path, EXTATTR_NAMESPACE_USER, name); | |
570 | +} | |
571 | + | |
572 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size) | |
573 | +{ | |
574 | + unsigned char keylen; | |
575 | + ssize_t off, len = extattr_list_link(path, EXTATTR_NAMESPACE_USER, list, size); | |
576 | + | |
577 | + if (len <= 0 || (size_t)len > size) | |
578 | + return len; | |
579 | + | |
580 | + /* FreeBSD puts a single-byte length before each string, with no '\0' | |
581 | + * terminator. We need to change this into a series of null-terminted | |
582 | + * strings. Since the size is the same, we can simply transform the | |
583 | + * output in place. */ | |
bdeab877 | 584 | + for (off = 0; off < len; off += keylen + 1) { |
742a4103 WD |
585 | + keylen = ((unsigned char*)list)[off]; |
586 | + if (off + keylen >= len) { | |
587 | + /* Should be impossible, but kernel bugs happen! */ | |
588 | + errno = EINVAL; | |
589 | + return -1; | |
590 | + } | |
591 | + memmove(list+off, list+off+1, keylen); | |
bdeab877 | 592 | + list[off+keylen] = '\0'; |
742a4103 WD |
593 | + } |
594 | + | |
595 | + return len; | |
596 | +} | |
597 | + | |
bbdff76a WD |
598 | +#else |
599 | + | |
56473cb9 WD |
600 | +#error You need to create xattr compatibility functions. |
601 | + | |
602 | +#endif | |
603 | + | |
604 | +#endif /* SUPPORT_XATTRS */ | |
64e98de1 WD |
605 | --- old/lib/sysxattrs.h |
606 | +++ new/lib/sysxattrs.h | |
742a4103 | 607 | @@ -0,0 +1,26 @@ |
49de5440 | 608 | +#ifdef SUPPORT_XATTRS |
8889f85e | 609 | + |
49de5440 | 610 | +#if defined HAVE_ATTR_XATTR_H |
0f6fb3c8 | 611 | +#include <attr/xattr.h> |
49de5440 WD |
612 | +#elif defined HAVE_SYS_XATTR_H |
613 | +#include <sys/xattr.h> | |
742a4103 WD |
614 | +#elif defined HAVE_SYS_EXTATTR_H |
615 | +#include <sys/extattr.h> | |
49de5440 | 616 | +#endif |
bbdff76a | 617 | + |
a74926e4 WD |
618 | +/* Linux 2.4 does not define this as a distinct errno value: */ |
619 | +#ifndef ENOATTR | |
620 | +#define ENOATTR ENODATA | |
621 | +#endif | |
622 | + | |
bbdff76a | 623 | +ssize_t sys_lgetxattr(const char *path, const char *name, void *value, size_t size); |
8627d8a2 | 624 | +ssize_t sys_fgetxattr(int filedes, const char *name, void *value, size_t size); |
742a4103 | 625 | +int sys_lsetxattr(const char *path, const char *name, const void *value, size_t size); |
a74926e4 | 626 | +int sys_lremovexattr(const char *path, const char *name); |
bbdff76a WD |
627 | +ssize_t sys_llistxattr(const char *path, char *list, size_t size); |
628 | + | |
629 | +#else | |
630 | + | |
8889f85e | 631 | +/* No xattrs available */ |
49de5440 WD |
632 | + |
633 | +#endif | |
64e98de1 WD |
634 | --- old/main.c |
635 | +++ new/main.c | |
636 | @@ -608,7 +608,7 @@ static void fix_basis_dirs(void) | |
637 | } | |
638 | ||
639 | /* This is only called by the sender. */ | |
640 | -static void read_final_goodbye(int f_in, int f_out) | |
641 | +static void read_final_goodbye(int f_in) | |
642 | { | |
643 | int i, iflags, xlen; | |
644 | uchar fnamecmp_type; | |
645 | @@ -617,8 +617,8 @@ static void read_final_goodbye(int f_in, | |
646 | if (protocol_version < 29) | |
647 | i = read_int(f_in); | |
648 | else { | |
649 | - i = read_ndx_and_attrs(f_in, f_out, &iflags, | |
650 | - &fnamecmp_type, xname, &xlen); | |
651 | + i = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, | |
652 | + xname, &xlen); | |
653 | } | |
654 | ||
655 | if (i != NDX_DONE) { | |
656 | @@ -677,7 +677,7 @@ static void do_server_sender(int f_in, i | |
657 | io_flush(FULL_FLUSH); | |
658 | handle_stats(f_out); | |
659 | if (protocol_version >= 24) | |
660 | - read_final_goodbye(f_in, f_out); | |
661 | + read_final_goodbye(f_in); | |
662 | io_flush(FULL_FLUSH); | |
663 | exit_cleanup(0); | |
664 | } | |
665 | @@ -740,7 +740,7 @@ static int do_recv(int f_in, int f_out, | |
666 | kluge_around_eof = -1; | |
667 | ||
668 | /* This should only get stopped via a USR2 signal. */ | |
669 | - read_ndx_and_attrs(f_in, -1, &iflags, &fnamecmp_type, | |
670 | + read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, | |
671 | xname, &xlen); | |
672 | ||
673 | rprintf(FERROR, "Invalid packet at end of run [%s]\n", | |
674 | @@ -977,7 +977,7 @@ int client_run(int f_in, int f_out, pid_ | |
675 | io_flush(FULL_FLUSH); | |
676 | handle_stats(-1); | |
677 | if (protocol_version >= 24) | |
678 | - read_final_goodbye(f_in, f_out); | |
679 | + read_final_goodbye(f_in); | |
680 | if (pid != -1) { | |
681 | if (verbose > 3) | |
682 | rprintf(FINFO,"client_run waiting on %d\n", (int) pid); | |
9a7eef96 WD |
683 | --- old/options.c |
684 | +++ new/options.c | |
526184b9 | 685 | @@ -47,6 +47,7 @@ int copy_links = 0; |
bbdff76a WD |
686 | int preserve_links = 0; |
687 | int preserve_hard_links = 0; | |
688 | int preserve_acls = 0; | |
689 | +int preserve_xattrs = 0; | |
690 | int preserve_perms = 0; | |
4a65fe72 | 691 | int preserve_executability = 0; |
bbdff76a | 692 | int preserve_devices = 0; |
87a38eea | 693 | @@ -201,6 +202,7 @@ static void print_rsync_version(enum log |
bbdff76a WD |
694 | char const *have_inplace = "no "; |
695 | char const *hardlinks = "no "; | |
696 | char const *acls = "no "; | |
697 | + char const *xattrs = "no "; | |
698 | char const *links = "no "; | |
699 | char const *ipv6 = "no "; | |
700 | STRUCT_STAT *dumstat; | |
87a38eea | 701 | @@ -220,7 +222,9 @@ static void print_rsync_version(enum log |
bbdff76a WD |
702 | #ifdef SUPPORT_ACLS |
703 | acls = ""; | |
704 | #endif | |
705 | - | |
706 | +#ifdef SUPPORT_XATTRS | |
707 | + xattrs = ""; | |
708 | +#endif | |
709 | #ifdef SUPPORT_LINKS | |
710 | links = ""; | |
711 | #endif | |
87a38eea | 712 | @@ -239,8 +243,8 @@ static void print_rsync_version(enum log |
5e3c6c93 WD |
713 | (int)(sizeof (int64) * 8)); |
714 | rprintf(f, " %ssocketpairs, %shardlinks, %ssymlinks, %sIPv6, batchfiles, %sinplace,\n", | |
715 | got_socketpair, hardlinks, links, ipv6, have_inplace); | |
716 | - rprintf(f, " %sappend, %sACLs\n", | |
717 | - have_inplace, acls); | |
718 | + rprintf(f, " %sappend, %sACLs, %sxattrs\n", | |
719 | + have_inplace, acls, xattrs); | |
56473cb9 | 720 | |
5e3c6c93 WD |
721 | #ifdef MAINTAINER_MODE |
722 | rprintf(f, "Panic Action: \"%s\"\n", get_panic_action()); | |
87a38eea | 723 | @@ -286,7 +290,7 @@ void usage(enum logcode F) |
1b57ecb0 | 724 | rprintf(F," -q, --quiet suppress non-error messages\n"); |
4959107f | 725 | rprintf(F," --no-motd suppress daemon-mode MOTD (see manpage caveat)\n"); |
1b57ecb0 WD |
726 | rprintf(F," -c, --checksum skip based on checksum, not mod-time & size\n"); |
727 | - rprintf(F," -a, --archive archive mode; same as -rlptgoD (no -H, -A)\n"); | |
728 | + rprintf(F," -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X)\n"); | |
729 | rprintf(F," --no-OPTION turn off an implied OPTION (e.g. --no-D)\n"); | |
730 | rprintf(F," -r, --recursive recurse into directories\n"); | |
731 | rprintf(F," -R, --relative use relative path names\n"); | |
87a38eea | 732 | @@ -311,6 +315,9 @@ void usage(enum logcode F) |
3610c43c | 733 | #ifdef SUPPORT_ACLS |
bbdff76a | 734 | rprintf(F," -A, --acls preserve ACLs (implies --perms)\n"); |
3610c43c WD |
735 | #endif |
736 | +#ifdef SUPPORT_XATTRS | |
bbdff76a | 737 | + rprintf(F," -X, --xattrs preserve extended attributes (implies --perms)\n"); |
3610c43c | 738 | +#endif |
4a65fe72 | 739 | rprintf(F," -o, --owner preserve owner (super-user only)\n"); |
bbdff76a | 740 | rprintf(F," -g, --group preserve group\n"); |
1ed0b5c9 | 741 | rprintf(F," --devices preserve device files (super-user only)\n"); |
87a38eea | 742 | @@ -438,6 +445,9 @@ static struct poptOption long_options[] |
489b0a72 WD |
743 | {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 }, |
744 | {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 }, | |
745 | {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 }, | |
746 | + {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 }, | |
747 | + {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 }, | |
748 | + {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 }, | |
749 | {"times", 't', POPT_ARG_VAL, &preserve_times, 1, 0, 0 }, | |
750 | {"no-times", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 }, | |
751 | {"no-t", 0, POPT_ARG_VAL, &preserve_times, 0, 0, 0 }, | |
87a38eea | 752 | @@ -1126,6 +1136,17 @@ int parse_arguments(int *argc, const cha |
489b0a72 | 753 | return 0; |
3610c43c | 754 | #endif |
bbdff76a WD |
755 | |
756 | + case 'X': | |
757 | +#ifdef SUPPORT_XATTRS | |
758 | + preserve_xattrs = 1; | |
759 | + preserve_perms = 1; | |
489b0a72 | 760 | + break; |
bbdff76a WD |
761 | +#else |
762 | + snprintf(err_buf,sizeof(err_buf), | |
763 | + "extended attributes are not supported on this %s\n", | |
764 | + am_server ? "server" : "client"); | |
765 | + return 0; | |
d2dc8a18 | 766 | +#endif |
bbdff76a WD |
767 | |
768 | default: | |
769 | /* A large opt value means that set_refuse_options() | |
87a38eea | 770 | @@ -1590,6 +1611,10 @@ void server_options(char **args,int *arg |
bbdff76a WD |
771 | if (preserve_acls) |
772 | argstr[x++] = 'A'; | |
3610c43c WD |
773 | #endif |
774 | +#ifdef SUPPORT_XATTRS | |
bbdff76a WD |
775 | + if (preserve_xattrs) |
776 | + argstr[x++] = 'X'; | |
3610c43c | 777 | +#endif |
fc068916 WD |
778 | if (recurse) |
779 | argstr[x++] = 'r'; | |
780 | if (always_checksum) | |
64e98de1 WD |
781 | --- old/receiver.c |
782 | +++ new/receiver.c | |
783 | @@ -22,6 +22,7 @@ | |
784 | #include "rsync.h" | |
785 | ||
786 | extern int verbose; | |
787 | +extern int dry_run; | |
788 | extern int do_xfers; | |
789 | extern int am_server; | |
790 | extern int do_progress; | |
3fbc83e8 WD |
791 | @@ -37,6 +38,7 @@ extern int protocol_version; |
792 | extern int relative_paths; | |
793 | extern int preserve_hard_links; | |
794 | extern int preserve_perms; | |
795 | +extern int preserve_xattrs; | |
796 | extern int basis_dir_cnt; | |
797 | extern int make_backups; | |
798 | extern int cleanup_got_literal; | |
799 | @@ -366,8 +368,8 @@ int recv_files(int f_in, char *local_nam | |
64e98de1 WD |
800 | cleanup_disable(); |
801 | ||
802 | /* This call also sets cur_flist. */ | |
803 | - ndx = read_ndx_and_attrs(f_in, -1, &iflags, | |
804 | - &fnamecmp_type, xname, &xlen); | |
805 | + ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, | |
806 | + xname, &xlen); | |
807 | if (ndx == NDX_DONE) { | |
808 | if (inc_recurse && first_flist) { | |
809 | flist_free(first_flist); | |
3fbc83e8 | 810 | @@ -397,8 +399,17 @@ int recv_files(int f_in, char *local_nam |
64e98de1 WD |
811 | if (verbose > 2) |
812 | rprintf(FINFO, "recv_files(%s)\n", fname); | |
813 | ||
814 | +#ifdef SUPPORT_XATTRS | |
815 | + if (iflags & ITEM_REPORT_XATTR && !dry_run) | |
816 | + recv_xattr_request(file, f_in); | |
817 | +#endif | |
818 | + | |
819 | if (!(iflags & ITEM_TRANSFER)) { | |
820 | maybe_log_item(file, iflags, itemizing, xname); | |
821 | +#ifdef SUPPORT_XATTRS | |
3fbc83e8 | 822 | + if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run) |
3e6568cf | 823 | + set_file_attrs(fname, file, NULL, fname, 0); |
64e98de1 WD |
824 | +#endif |
825 | continue; | |
826 | } | |
827 | if (phase == 2) { | |
3fbc83e8 | 828 | @@ -655,15 +666,15 @@ int recv_files(int f_in, char *local_nam |
3e6568cf WD |
829 | temp_copy_name = NULL; |
830 | else | |
831 | temp_copy_name = partialptr; | |
832 | - finish_transfer(fname, fnametmp, temp_copy_name, | |
833 | - file, recv_ok, 1); | |
834 | + finish_transfer(fname, fnametmp, fnamecmp, | |
835 | + temp_copy_name, file, recv_ok, 1); | |
836 | if (fnamecmp == partialptr) { | |
837 | do_unlink(partialptr); | |
838 | handle_partial_dir(partialptr, PDIR_DELETE); | |
839 | } | |
840 | } else if (keep_partial && partialptr | |
841 | && handle_partial_dir(partialptr, PDIR_CREATE)) { | |
842 | - finish_transfer(partialptr, fnametmp, NULL, | |
843 | + finish_transfer(partialptr, fnametmp, fnamecmp, NULL, | |
844 | file, recv_ok, !partial_dir); | |
845 | if (delay_updates && recv_ok) { | |
846 | bitbag_set_bit(delayed_bits, ndx); | |
9a7eef96 WD |
847 | --- old/rsync.c |
848 | +++ new/rsync.c | |
526184b9 | 849 | @@ -32,6 +32,7 @@ |
ff318e90 | 850 | extern int verbose; |
93d6ca6d | 851 | extern int dry_run; |
93d6ca6d WD |
852 | extern int preserve_acls; |
853 | +extern int preserve_xattrs; | |
854 | extern int preserve_perms; | |
855 | extern int preserve_executability; | |
856 | extern int preserve_times; | |
64e98de1 WD |
857 | @@ -91,10 +92,8 @@ void setup_iconv() |
858 | } | |
859 | #endif | |
860 | ||
861 | -/* This is used by sender.c with a valid f_out, and by receive.c with | |
862 | - * f_out = -1. */ | |
863 | -int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr, | |
864 | - uchar *type_ptr, char *buf, int *len_ptr) | |
865 | +int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr, | |
866 | + char *buf, int *len_ptr) | |
867 | { | |
868 | int len, iflags = 0; | |
869 | struct file_list *flist; | |
870 | @@ -181,11 +180,6 @@ int read_ndx_and_attrs(int f_in, int f_o | |
871 | ndx, who_am_i()); | |
872 | exit_cleanup(RERR_PROTOCOL); | |
873 | } | |
874 | - } else if (f_out >= 0) { | |
875 | - if (inc_recurse) | |
876 | - send_extra_file_list(f_out, FILECNT_LOOKAHEAD); | |
877 | - write_ndx_and_attrs(f_out, ndx, iflags, | |
878 | - fnamecmp_type, buf, len); | |
879 | } | |
880 | ||
881 | *iflag_ptr = iflags; | |
3e6568cf WD |
882 | @@ -228,8 +222,8 @@ mode_t dest_mode(mode_t flist_mode, mode |
883 | return new_mode; | |
884 | } | |
885 | ||
886 | -int set_file_attrs(char *fname, struct file_struct *file, statx *sxp, | |
887 | - int flags) | |
888 | +int set_file_attrs(const char *fname, struct file_struct *file, statx *sxp, | |
889 | + const char *fnamecmp, int flags) | |
890 | { | |
891 | int updated = 0; | |
892 | statx sx2; | |
64e98de1 WD |
893 | @@ -247,6 +241,9 @@ int set_file_attrs(char *fname, struct f |
894 | #ifdef SUPPORT_ACLS | |
895 | sx2.acc_acl = sx2.def_acl = NULL; | |
896 | #endif | |
897 | +#ifdef SUPPORT_XATTRS | |
898 | + sx2.xattr = NULL; | |
899 | +#endif | |
900 | if (!preserve_perms && S_ISDIR(new_mode) | |
901 | && sx2.st.st_mode & S_ISGID) { | |
902 | /* We just created this directory and its setgid | |
acf4467b WD |
903 | @@ -261,6 +258,11 @@ int set_file_attrs(char *fname, struct f |
904 | get_acl(fname, sxp); | |
905 | #endif | |
071c5b19 | 906 | |
09cc6650 | 907 | +#ifdef SUPPORT_XATTRS |
3e6568cf | 908 | + if (preserve_xattrs && fnamecmp) |
acf4467b | 909 | + set_xattr(fname, file, fnamecmp, sxp); |
09cc6650 | 910 | +#endif |
acf4467b WD |
911 | + |
912 | if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && omit_dir_times)) | |
913 | flags |= ATTRS_SKIP_MTIME; | |
914 | if (!(flags & ATTRS_SKIP_MTIME) | |
915 | @@ -353,10 +355,16 @@ int set_file_attrs(char *fname, struct f | |
64e98de1 WD |
916 | rprintf(FCLIENT, "%s is uptodate\n", fname); |
917 | } | |
918 | cleanup: | |
919 | + if (sxp == &sx2) { | |
920 | #ifdef SUPPORT_ACLS | |
921 | - if (preserve_acls && sxp == &sx2) | |
922 | - free_acl(&sx2); | |
923 | + if (preserve_acls) | |
924 | + free_acl(&sx2); | |
3e6568cf | 925 | +#endif |
64e98de1 WD |
926 | +#ifdef SUPPORT_XATTRS |
927 | + if (preserve_xattrs) | |
928 | + free_xattr(&sx2); | |
3e6568cf | 929 | #endif |
64e98de1 WD |
930 | + } |
931 | return updated; | |
932 | } | |
0f6fb3c8 | 933 | |
acf4467b | 934 | @@ -378,7 +386,8 @@ RETSIGTYPE sig_int(UNUSED(int val)) |
3e6568cf WD |
935 | * attributes (e.g. permissions, ownership, etc.). If partialptr is not |
936 | * NULL and the robust_rename() call is forced to copy the temp file, we | |
937 | * stage the file into the partial-dir and then rename it into place. */ | |
938 | -void finish_transfer(char *fname, char *fnametmp, char *partialptr, | |
939 | +void finish_transfer(const char *fname, const char *fnametmp, | |
940 | + const char *fnamecmp, const char *partialptr, | |
941 | struct file_struct *file, int ok_to_set_time, | |
942 | int overwriting_basis) | |
943 | { | |
acf4467b | 944 | @@ -395,7 +404,7 @@ void finish_transfer(char *fname, char * |
3e6568cf WD |
945 | return; |
946 | ||
947 | /* Change permissions before putting the file into place. */ | |
948 | - set_file_attrs(fnametmp, file, NULL, | |
949 | + set_file_attrs(fnametmp, file, NULL, fnamecmp, | |
950 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); | |
951 | ||
952 | /* move tmp file over real file */ | |
acf4467b | 953 | @@ -419,7 +428,7 @@ void finish_transfer(char *fname, char * |
3e6568cf WD |
954 | fnametmp = partialptr ? partialptr : fname; |
955 | ||
956 | do_set_file_attrs: | |
957 | - set_file_attrs(fnametmp, file, NULL, | |
958 | + set_file_attrs(fnametmp, file, NULL, fnamecmp, | |
959 | ok_to_set_time ? 0 : ATTRS_SKIP_MTIME); | |
960 | ||
961 | if (partialptr) { | |
64e98de1 WD |
962 | --- old/rsync.h |
963 | +++ new/rsync.h | |
964 | @@ -569,6 +569,7 @@ extern int file_extra_cnt; | |
6eba67ec WD |
965 | extern int preserve_uid; |
966 | extern int preserve_gid; | |
967 | extern int preserve_acls; | |
968 | +extern int preserve_xattrs; | |
969 | ||
970 | #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename)) | |
971 | #define EXTRA_LEN (sizeof (union file_extras)) | |
64e98de1 WD |
972 | @@ -601,7 +602,8 @@ extern int preserve_acls; |
973 | /* When the associated option is on, all entries will have these present: */ | |
fc068916 WD |
974 | #define F_OWNER(f) REQ_EXTRA(f, preserve_uid)->unum |
975 | #define F_GROUP(f) REQ_EXTRA(f, preserve_gid)->unum | |
64e98de1 WD |
976 | -#define F_ACL(f) REQ_EXTRA(f, preserve_acls)->unum |
977 | +#define F_ACL(f) REQ_EXTRA(f, preserve_acls)->num | |
978 | +#define F_XATTR(f) REQ_EXTRA(f, preserve_xattrs)->num | |
70891d26 | 979 | |
8aec0853 | 980 | /* These items are per-entry optional and mutally exclusive: */ |
fdf967c7 | 981 | #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num |
64e98de1 | 982 | @@ -793,9 +795,13 @@ typedef struct { |
0f6fb3c8 WD |
983 | struct rsync_acl *acc_acl; /* access ACL */ |
984 | struct rsync_acl *def_acl; /* default ACL */ | |
985 | #endif | |
986 | +#ifdef SUPPORT_XATTRS | |
987 | + item_list *xattr; | |
bbdff76a | 988 | +#endif |
0f6fb3c8 | 989 | } statx; |
bbdff76a | 990 | |
0f6fb3c8 | 991 | #define ACL_READY(sx) ((sx).acc_acl != NULL) |
64e98de1 WD |
992 | +#define XATTR_READY(sx) ((sx).xattr != NULL) |
993 | ||
994 | #include "proto.h" | |
995 | ||
9a7eef96 WD |
996 | --- old/rsync.yo |
997 | +++ new/rsync.yo | |
4959107f | 998 | @@ -301,7 +301,7 @@ to the detailed description below for a |
1b57ecb0 | 999 | -q, --quiet suppress non-error messages |
4959107f | 1000 | --no-motd suppress daemon-mode MOTD (see caveat) |
1b57ecb0 WD |
1001 | -c, --checksum skip based on checksum, not mod-time & size |
1002 | - -a, --archive archive mode; same as -rlptgoD (no -H, -A) | |
1003 | + -a, --archive archive mode; equals -rlptgoD (no -H,-A,-X) | |
1004 | --no-OPTION turn off an implied OPTION (e.g. --no-D) | |
1005 | -r, --recursive recurse into directories | |
1006 | -R, --relative use relative path names | |
4959107f | 1007 | @@ -324,6 +324,7 @@ to the detailed description below for a |
4a65fe72 | 1008 | -E, --executability preserve executability |
063cf77b | 1009 | --chmod=CHMOD affect file and/or directory permissions |
4306c620 WD |
1010 | -A, --acls preserve ACLs (implies -p) |
1011 | + -X, --xattrs preserve extended attrs (implies -p) | |
4a65fe72 | 1012 | -o, --owner preserve owner (super-user only) |
bbdff76a | 1013 | -g, --group preserve group |
1ed0b5c9 | 1014 | --devices preserve device files (super-user only) |
4306c620 WD |
1015 | @@ -831,6 +832,11 @@ dit(bf(-A, --acls)) This option causes r |
1016 | ACLs to be the same as the source ACLs. This nonstandard option only | |
1017 | works if the remote rsync also supports it. bf(--acls) implies bf(--perms). | |
bbdff76a WD |
1018 | |
1019 | +dit(bf(-X, --xattrs)) This option causes rsync to update the remote | |
1020 | +extended attributes to be the same as the local ones. This will work | |
1021 | +only if the remote machine's rsync supports this option also. This is | |
1022 | +a non-standard option. | |
1023 | + | |
4a65fe72 WD |
1024 | dit(bf(--chmod)) This option tells rsync to apply one or more |
1025 | comma-separated "chmod" strings to the permission of the files in the | |
1026 | transfer. The resulting value is treated as though it was the permissions | |
64e98de1 WD |
1027 | --- old/sender.c |
1028 | +++ new/sender.c | |
1029 | @@ -22,6 +22,7 @@ | |
1030 | #include "rsync.h" | |
1031 | ||
1032 | extern int verbose; | |
1033 | +extern int dry_run; | |
1034 | extern int do_xfers; | |
1035 | extern int am_server; | |
1036 | extern int am_daemon; | |
acf4467b WD |
1037 | @@ -33,6 +34,7 @@ extern int csum_length; |
1038 | extern int append_mode; | |
1039 | extern int io_error; | |
1040 | extern int allowed_lull; | |
1041 | +extern int preserve_xattrs; | |
1042 | extern int protocol_version; | |
1043 | extern int remove_source_files; | |
1044 | extern int updating_basis_file; | |
1045 | @@ -144,8 +146,9 @@ void successful_send(int ndx) | |
64e98de1 WD |
1046 | rsyserr(FERROR, errno, "sender failed to remove %s", fname); |
1047 | } | |
1048 | ||
1049 | -void write_ndx_and_attrs(int f_out, int ndx, int iflags, | |
1050 | - uchar fnamecmp_type, char *buf, int len) | |
1051 | +static void write_ndx_and_attrs(int f_out, int ndx, int iflags, | |
1052 | + const char *fname, struct file_struct *file, | |
1053 | + uchar fnamecmp_type, char *buf, int len) | |
1054 | { | |
1055 | write_ndx(f_out, ndx); | |
1056 | if (protocol_version < 29) | |
acf4467b | 1057 | @@ -155,6 +158,10 @@ void write_ndx_and_attrs(int f_out, int |
64e98de1 WD |
1058 | write_byte(f_out, fnamecmp_type); |
1059 | if (iflags & ITEM_XNAME_FOLLOWS) | |
1060 | write_vstring(f_out, buf, len); | |
1061 | +#ifdef SUPPORT_XATTRS | |
acf4467b | 1062 | + if (preserve_xattrs && iflags & ITEM_REPORT_XATTR && !dry_run) |
64e98de1 WD |
1063 | + send_xattr_request(fname, file, f_out); |
1064 | +#endif | |
1065 | } | |
1066 | ||
1067 | void send_files(int f_in, int f_out) | |
acf4467b | 1068 | @@ -183,8 +190,8 @@ void send_files(int f_in, int f_out) |
64e98de1 WD |
1069 | send_extra_file_list(f_out, FILECNT_LOOKAHEAD); |
1070 | ||
1071 | /* This call also sets cur_flist. */ | |
1072 | - ndx = read_ndx_and_attrs(f_in, f_out, &iflags, | |
1073 | - &fnamecmp_type, xname, &xlen); | |
1074 | + ndx = read_ndx_and_attrs(f_in, &iflags, &fnamecmp_type, | |
1075 | + xname, &xlen); | |
1076 | if (ndx == NDX_DONE) { | |
1077 | if (inc_recurse && first_flist) { | |
1078 | flist_free(first_flist); | |
acf4467b | 1079 | @@ -201,6 +208,9 @@ void send_files(int f_in, int f_out) |
64e98de1 WD |
1080 | continue; |
1081 | } | |
1082 | ||
1083 | + if (inc_recurse) | |
1084 | + send_extra_file_list(f_out, FILECNT_LOOKAHEAD); | |
1085 | + | |
1086 | file = cur_flist->files[ndx - cur_flist->ndx_start]; | |
1087 | if (F_ROOTDIR(file)) { | |
1088 | path = F_ROOTDIR(file); | |
acf4467b | 1089 | @@ -215,8 +225,15 @@ void send_files(int f_in, int f_out) |
64e98de1 WD |
1090 | if (verbose > 2) |
1091 | rprintf(FINFO, "send_files(%d, %s%s%s)\n", ndx, path,slash,fname); | |
1092 | ||
acf4467b WD |
1093 | +#ifdef SUPPORT_XATTRS |
1094 | + if (preserve_xattrs && iflags & ITEM_REPORT_XATTR) | |
64e98de1 | 1095 | + recv_xattr_request(file, f_in); |
acf4467b | 1096 | +#endif |
64e98de1 WD |
1097 | + |
1098 | if (!(iflags & ITEM_TRANSFER)) { | |
1099 | maybe_log_item(file, iflags, itemizing, xname); | |
1100 | + write_ndx_and_attrs(f_out, ndx, iflags, fname, file, | |
1101 | + fnamecmp_type, xname, xlen); | |
1102 | continue; | |
1103 | } | |
1104 | if (phase == 2) { | |
acf4467b | 1105 | @@ -251,8 +268,8 @@ void send_files(int f_in, int f_out) |
64e98de1 WD |
1106 | |
1107 | if (!do_xfers) { /* log the transfer */ | |
1108 | log_item(FCLIENT, file, &stats, iflags, NULL); | |
1109 | - write_ndx_and_attrs(f_out, ndx, iflags, fnamecmp_type, | |
1110 | - xname, xlen); | |
1111 | + write_ndx_and_attrs(f_out, ndx, iflags, fname, file, | |
1112 | + fnamecmp_type, xname, xlen); | |
1113 | continue; | |
1114 | } | |
1115 | ||
acf4467b | 1116 | @@ -305,8 +322,8 @@ void send_files(int f_in, int f_out) |
64e98de1 WD |
1117 | path,slash,fname, (double)st.st_size); |
1118 | } | |
1119 | ||
1120 | - write_ndx_and_attrs(f_out, ndx, iflags, fnamecmp_type, | |
1121 | - xname, xlen); | |
1122 | + write_ndx_and_attrs(f_out, ndx, iflags, fname, file, | |
1123 | + fnamecmp_type, xname, xlen); | |
1124 | write_sum_head(f_xfer, s); | |
1125 | ||
1126 | if (verbose > 2) | |
1127 | --- old/testsuite/xattrs.test | |
1128 | +++ new/testsuite/xattrs.test | |
77a7a0f0 | 1129 | @@ -0,0 +1,90 @@ |
64e98de1 WD |
1130 | +#! /bin/sh |
1131 | + | |
1132 | +# This program is distributable under the terms of the GNU GPL (see | |
1133 | +# COPYING). | |
1134 | + | |
1135 | +# Test that rsync handles basic xattr preservation. | |
1136 | + | |
1137 | +. $srcdir/testsuite/rsync.fns | |
1138 | + | |
1139 | +$RSYNC --version | grep ", xattrs" >/dev/null || test_skipped "Rsync is configured without xattr support" | |
1140 | + | |
1141 | +case "$RSYNC" in | |
1142 | +*protocol=29*) test_skipped "xattr support requires protocol 30" ;; | |
1143 | +esac | |
1144 | + | |
77a7a0f0 WD |
1145 | +xset() { |
1146 | + xnam="$1" | |
1147 | + xval="$2" | |
1148 | + shift 2 | |
1149 | + setfattr -n "$xnam" -v "$xval" "${@}" | |
1150 | + #xattr -s "$xnam" "$xval" "${@}" | |
1151 | +} | |
1152 | + | |
1153 | +xls() { | |
1154 | + getfattr -d "${@}" | |
1155 | + #xattr -l "${@}" | |
1156 | +} | |
1157 | + | |
64e98de1 WD |
1158 | +makepath "$fromdir/foo" |
1159 | +echo something >"$fromdir/file1" | |
1160 | +echo else >"$fromdir/file2" | |
1161 | +echo last >"$fromdir/foo/file3" | |
1162 | + | |
3fbc83e8 WD |
1163 | +makepath "$chkdir/foo" |
1164 | +echo wow >"$chkdir/file1" | |
1165 | +cp -p "$fromdir/foo/file3" "$chkdir/foo" | |
64e98de1 WD |
1166 | + |
1167 | +files='foo file1 file2 foo/file3' | |
1168 | + | |
1169 | +cd "$fromdir" | |
1170 | + | |
77a7a0f0 WD |
1171 | +xset user.short 'this is short' file1 2>/dev/null || test_skipped "Unable to set an xattr" |
1172 | +xset user.long 'this is a long attribute that will be truncated in the initial data send' file1 | |
1173 | +xset user.good 'this is good' file1 | |
1174 | +xset user.nice 'this is nice' file1 | |
64e98de1 | 1175 | + |
77a7a0f0 WD |
1176 | +xset user.foo foo file2 |
1177 | +xset user.bar bar file2 | |
1178 | +xset user.long 'a long attribute for our new file that tests to ensure that this works' file2 | |
64e98de1 | 1179 | + |
77a7a0f0 WD |
1180 | +xset user.foo 'new foo' foo/file3 |
1181 | +xset user.bar 'new bar' foo/file3 | |
1182 | +xset user.long 'this is also a long attribute that will be truncated in the initial data send' foo/file3 | |
1183 | +xset user.equal 'this long attribute should remain the same and not need to be transferred' foo/file3 | |
64e98de1 | 1184 | + |
77a7a0f0 WD |
1185 | +xset user.short 'old short' "$chkdir/file1" |
1186 | +xset user.extra 'remove me' "$chkdir/file1" | |
3fbc83e8 | 1187 | + |
77a7a0f0 WD |
1188 | +xset user.foo 'old foo' "$chkdir/foo/file3" |
1189 | +xset user.equal 'this long attribute should remain the same and not need to be transferred' "$chkdir/foo/file3" | |
3fbc83e8 | 1190 | + |
77a7a0f0 | 1191 | +xls $files >"$scratchdir/xattrs.txt" |
3fbc83e8 WD |
1192 | + |
1193 | +# OK, let's try a simple xattr copy. | |
1194 | +checkit "$RSYNC -avX . \"$chkdir/\"" "$fromdir" "$chkdir" | |
64e98de1 | 1195 | + |
3fbc83e8 | 1196 | +cd "$chkdir" |
77a7a0f0 | 1197 | +xls $files | diff $diffopt "$scratchdir/xattrs.txt" - |
64e98de1 | 1198 | + |
3fbc83e8 WD |
1199 | +cd "$fromdir" |
1200 | + | |
1201 | +checkit "$RSYNC -aiX --copy-dest=../chk . ../to" "$fromdir" "$todir" | |
1202 | + | |
1203 | +cd "$todir" | |
77a7a0f0 | 1204 | +xls $files | diff $diffopt "$scratchdir/xattrs.txt" - |
3fbc83e8 WD |
1205 | + |
1206 | +cd "$fromdir" | |
77a7a0f0 | 1207 | +xset user.nice 'this is nice, but different' file1 |
64e98de1 | 1208 | + |
77a7a0f0 | 1209 | +xls $files >"$scratchdir/xattrs.txt" |
64e98de1 | 1210 | + |
3fbc83e8 WD |
1211 | +rm -rf "$todir" |
1212 | + | |
1213 | +checkit "$RSYNC -aiX --link-dest=../chk . ../to" "$chkdir" "$todir" | |
1214 | + | |
64e98de1 | 1215 | +cd "$todir" |
77a7a0f0 | 1216 | +xls $files | diff $diffopt "$scratchdir/xattrs.txt" - |
64e98de1 WD |
1217 | + |
1218 | +# The script would have aborted on error, so getting here means we've won. | |
1219 | +exit 0 | |
1220 | --- old/xattrs.c | |
1221 | +++ new/xattrs.c | |
77a7a0f0 | 1222 | @@ -0,0 +1,771 @@ |
dc52bc1a WD |
1223 | +/* |
1224 | + * Extended Attribute support for rsync. | |
0f6fb3c8 | 1225 | + * Written by Jay Fenlason, vaguely based on the ACLs patch. |
dc52bc1a WD |
1226 | + * |
1227 | + * Copyright (C) 2004 Red Hat, Inc. | |
64e98de1 | 1228 | + * Copyright (C) 2006, 2007 Wayne Davison |
dc52bc1a WD |
1229 | + * |
1230 | + * This program is free software; you can redistribute it and/or modify | |
64e98de1 WD |
1231 | + * it under the terms of the GNU General Public License version 2 as |
1232 | + * published by the Free Software Foundation. | |
dc52bc1a WD |
1233 | + * |
1234 | + * This program is distributed in the hope that it will be useful, | |
1235 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1236 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1237 | + * GNU General Public License for more details. | |
1238 | + * | |
1239 | + * You should have received a copy of the GNU General Public License along | |
1240 | + * with this program; if not, write to the Free Software Foundation, Inc., | |
1241 | + * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
1242 | + */ | |
bbdff76a WD |
1243 | + |
1244 | +#include "rsync.h" | |
64e98de1 | 1245 | +#include "lib/sysxattrs.h" |
bbdff76a WD |
1246 | + |
1247 | +#ifdef SUPPORT_XATTRS | |
1248 | + | |
bbdff76a | 1249 | +extern int dry_run; |
3f24a3a8 | 1250 | +extern int am_root; |
64e98de1 | 1251 | +extern int am_sender; |
3fbc83e8 | 1252 | +extern int am_generator; |
8889f85e WD |
1253 | +extern int read_only; |
1254 | +extern int list_only; | |
64e98de1 | 1255 | +extern int checksum_seed; |
bbdff76a WD |
1256 | + |
1257 | +#define RSYNC_XAL_INITIAL 5 | |
1258 | +#define RSYNC_XAL_LIST_INITIAL 100 | |
1259 | + | |
64e98de1 WD |
1260 | +#define MAX_FULL_DATUM 32 |
1261 | + | |
922f4409 WD |
1262 | +#define HAS_PREFIX(str, prfx) (*(str) == *(prfx) \ |
1263 | + && strncmp(str, prfx, sizeof (prfx) - 1) == 0) | |
1264 | + | |
3fbc83e8 WD |
1265 | +#define XATTR_ABBREV(x) ((size_t)((x).name - (x).datum) < (x).datum_len) |
1266 | + | |
1267 | +#define XSTATE_ABBREV 0 | |
1268 | +#define XSTATE_DONE 1 | |
1269 | +#define XSTATE_TODO 2 | |
1270 | +#define XSTATE_LOCAL 3 | |
1271 | + | |
3f24a3a8 | 1272 | +#define USER_PREFIX "user." |
27502d8d WD |
1273 | +#define UPRE_LEN ((int)sizeof USER_PREFIX - 1) |
1274 | +#define SYSTEM_PREFIX "system." | |
1275 | +#define SPRE_LEN ((int)sizeof SYSTEM_PREFIX - 1) | |
1276 | + | |
1277 | +#ifdef HAVE_LINUX_XATTRS | |
1278 | +#define RPRE_LEN 0 | |
1279 | +#else | |
1280 | +#define RSYNC_PREFIX "rsync." | |
1281 | +#define RPRE_LEN ((int)sizeof RSYNC_PREFIX - 1) | |
1282 | +#endif | |
3f24a3a8 | 1283 | + |
bbdff76a | 1284 | +typedef struct { |
27502d8d WD |
1285 | + char *datum, *name; |
1286 | + size_t datum_len, name_len; | |
bbdff76a WD |
1287 | +} rsync_xa; |
1288 | + | |
bbdff76a WD |
1289 | +static size_t namebuf_len = 0; |
1290 | +static char *namebuf = NULL; | |
1291 | + | |
0f6fb3c8 WD |
1292 | +static item_list empty_xattr = EMPTY_ITEM_LIST; |
1293 | +static item_list rsync_xal_l = EMPTY_ITEM_LIST; | |
bbdff76a WD |
1294 | + |
1295 | +/* ------------------------------------------------------------------------- */ | |
1296 | + | |
0f6fb3c8 | 1297 | +static void rsync_xal_free(item_list *xalp) |
bbdff76a WD |
1298 | +{ |
1299 | + size_t i; | |
0f6fb3c8 | 1300 | + rsync_xa *rxas = xalp->items; |
bbdff76a | 1301 | + |
0f6fb3c8 | 1302 | + for (i = 0; i < xalp->count; i++) { |
27502d8d WD |
1303 | + free(rxas[i].datum); |
1304 | + /*free(rxas[i].name);*/ | |
bbdff76a | 1305 | + } |
0f6fb3c8 | 1306 | + xalp->count = 0; |
bbdff76a WD |
1307 | +} |
1308 | + | |
0f6fb3c8 | 1309 | +void free_xattr(statx *sxp) |
bbdff76a | 1310 | +{ |
64e98de1 WD |
1311 | + if (!sxp->xattr) |
1312 | + return; | |
0f6fb3c8 WD |
1313 | + rsync_xal_free(sxp->xattr); |
1314 | + free(sxp->xattr); | |
1315 | + sxp->xattr = NULL; | |
1316 | +} | |
bbdff76a | 1317 | + |
0f6fb3c8 WD |
1318 | +static int rsync_xal_compare_names(const void *x1, const void *x2) |
1319 | +{ | |
1320 | + const rsync_xa *xa1 = x1; | |
1321 | + const rsync_xa *xa2 = x2; | |
bbdff76a WD |
1322 | + return strcmp(xa1->name, xa2->name); |
1323 | +} | |
1324 | + | |
64e98de1 | 1325 | +static ssize_t get_xattr_names(const char *fname) |
bbdff76a | 1326 | +{ |
526184b9 | 1327 | + ssize_t list_len; |
bbdff76a WD |
1328 | + |
1329 | + if (!namebuf) { | |
49de5440 | 1330 | + namebuf_len = 1024; |
bbdff76a | 1331 | + namebuf = new_array(char, namebuf_len); |
49de5440 | 1332 | + if (!namebuf) |
64e98de1 | 1333 | + out_of_memory("get_xattr_names"); |
bbdff76a WD |
1334 | + } |
1335 | + | |
49de5440 | 1336 | + /* The length returned includes all the '\0' terminators. */ |
27502d8d WD |
1337 | + list_len = sys_llistxattr(fname, namebuf, namebuf_len); |
1338 | + if (list_len > (ssize_t)namebuf_len) { | |
1339 | + list_len = -1; | |
bbdff76a WD |
1340 | + errno = ERANGE; |
1341 | + } | |
77a7a0f0 WD |
1342 | + if (list_len >= 0) |
1343 | + return list_len; | |
1344 | + if (errno == ENOTSUP) | |
1345 | + return 0; | |
1346 | + if (errno == ERANGE) { | |
1347 | + list_len = sys_llistxattr(fname, NULL, 0); | |
1348 | + if (list_len < 0) { | |
0f6fb3c8 | 1349 | + rsyserr(FERROR, errno, |
77a7a0f0 WD |
1350 | + "get_xattr_names: llistxattr(\"%s\",0) failed", |
1351 | + fname); | |
e5754c5f | 1352 | + return -1; |
bbdff76a | 1353 | + } |
77a7a0f0 WD |
1354 | + if (namebuf_len) |
1355 | + free(namebuf); | |
1356 | + namebuf_len = list_len + 1024; | |
1357 | + namebuf = new_array(char, namebuf_len); | |
1358 | + if (!namebuf) | |
1359 | + out_of_memory("get_xattr_names"); | |
1360 | + list_len = sys_llistxattr(fname, namebuf, namebuf_len); | |
1361 | + if (list_len >= 0) | |
1362 | + return list_len; | |
bbdff76a | 1363 | + } |
27502d8d | 1364 | + |
77a7a0f0 WD |
1365 | + rsyserr(FERROR, errno, |
1366 | + "get_xattr_names: llistxattr(\"%s\",%ld) failed", | |
1367 | + fname, (long)namebuf_len); | |
1368 | + return -1; | |
526184b9 WD |
1369 | +} |
1370 | + | |
64e98de1 WD |
1371 | +/* On entry, the *len_ptr parameter contains the size of the extra space we |
1372 | + * should allocate when we create a buffer for the data. On exit, it contains | |
1373 | + * the length of the datum. */ | |
3fbc83e8 WD |
1374 | +static char *get_xattr_data(const char *fname, const char *name, size_t *len_ptr, |
1375 | + int no_missing_error) | |
64e98de1 WD |
1376 | +{ |
1377 | + size_t datum_len = sys_lgetxattr(fname, name, NULL, 0); | |
1378 | + char *ptr; | |
1379 | + | |
1380 | + if (datum_len == (size_t)-1) { | |
3fbc83e8 | 1381 | + if (errno == ENOTSUP || no_missing_error) |
64e98de1 WD |
1382 | + return NULL; |
1383 | + rsyserr(FERROR, errno, | |
1384 | + "get_xattr_data: lgetxattr(\"%s\",\"%s\",0) failed", | |
1385 | + fname, name); | |
1386 | + return NULL; | |
1387 | + } | |
1388 | + | |
64e98de1 WD |
1389 | + if (datum_len + *len_ptr < datum_len /* checks for overflow */ |
1390 | + || !(ptr = new_array(char, datum_len + *len_ptr))) | |
1391 | + out_of_memory("get_xattr_data"); | |
1392 | + | |
9c18601b WD |
1393 | + *len_ptr = datum_len; |
1394 | + | |
64e98de1 WD |
1395 | + if (datum_len) { |
1396 | + size_t len = sys_lgetxattr(fname, name, ptr, datum_len); | |
1397 | + if (len != datum_len) { | |
1398 | + if (len == (size_t)-1) { | |
1399 | + rsyserr(FERROR, errno, | |
1400 | + "get_xattr_data: lgetxattr(\"%s\",\"%s\",%ld)" | |
1401 | + " failed", fname, name, (long)datum_len); | |
1402 | + } else { | |
1403 | + rprintf(FERROR, | |
1404 | + "get_xattr_data: lgetxattr(\"%s\",\"%s\",%ld)" | |
1405 | + " returned %ld\n", fname, name, | |
1406 | + (long)datum_len, (long)len); | |
1407 | + } | |
1408 | + free(ptr); | |
1409 | + return NULL; | |
1410 | + } | |
1411 | + } | |
1412 | + | |
1413 | + return ptr; | |
1414 | +} | |
1415 | + | |
526184b9 WD |
1416 | +static int rsync_xal_get(const char *fname, item_list *xalp) |
1417 | +{ | |
64e98de1 WD |
1418 | + ssize_t list_len, name_len; |
1419 | + size_t datum_len, name_offset; | |
526184b9 | 1420 | + char *name, *ptr; |
77a7a0f0 | 1421 | +#ifdef HAVE_LINUX_XATTRS |
64e98de1 | 1422 | + int user_only = am_sender ? 0 : !am_root; |
77a7a0f0 | 1423 | +#endif |
526184b9 WD |
1424 | + |
1425 | + /* This puts the name list into the "namebuf" buffer. */ | |
64e98de1 | 1426 | + if ((list_len = get_xattr_names(fname)) < 0) |
526184b9 WD |
1427 | + return -1; |
1428 | + | |
892d2287 | 1429 | + for (name = namebuf; list_len > 0; name += name_len) { |
3f24a3a8 | 1430 | + rsync_xa *rxas; |
bbdff76a | 1431 | + |
27502d8d | 1432 | + name_len = strlen(name) + 1; |
892d2287 | 1433 | + list_len -= name_len; |
3f24a3a8 WD |
1434 | + |
1435 | +#ifdef HAVE_LINUX_XATTRS | |
64e98de1 WD |
1436 | + /* We always ignore the system namespace, and non-root |
1437 | + * ignores everything but the user namespace. */ | |
1438 | + if (user_only ? !HAS_PREFIX(name, USER_PREFIX) | |
1439 | + : HAS_PREFIX(name, SYSTEM_PREFIX)) | |
3f24a3a8 WD |
1440 | + continue; |
1441 | +#endif | |
1442 | + | |
64e98de1 | 1443 | + datum_len = name_len; /* Pass extra size to get_xattr_data() */ |
3fbc83e8 | 1444 | + if (!(ptr = get_xattr_data(fname, name, &datum_len, 0))) |
49de5440 | 1445 | + return -1; |
64e98de1 WD |
1446 | + |
1447 | + if (datum_len > MAX_FULL_DATUM) { | |
1448 | + /* For large datums, we store a flag and a checksum. */ | |
1449 | + name_offset = 1 + MAX_DIGEST_LEN; | |
1450 | + sum_init(checksum_seed); | |
1451 | + sum_update(ptr, datum_len); | |
1452 | + free(ptr); | |
1453 | + | |
1454 | + if (!(ptr = new_array(char, name_offset + name_len))) | |
1455 | + out_of_memory("rsync_xal_get"); | |
3fbc83e8 | 1456 | + *ptr = XSTATE_ABBREV; |
64e98de1 WD |
1457 | + sum_end(ptr + 1); |
1458 | + } else | |
1459 | + name_offset = datum_len; | |
1460 | + | |
27502d8d | 1461 | + rxas = EXPAND_ITEM_LIST(xalp, rsync_xa, RSYNC_XAL_INITIAL); |
64e98de1 WD |
1462 | + rxas->name = ptr + name_offset; |
1463 | + memcpy(rxas->name, name, name_len); | |
b54d5ec2 | 1464 | + rxas->datum = ptr; |
27502d8d WD |
1465 | + rxas->name_len = name_len; |
1466 | + rxas->datum_len = datum_len; | |
bbdff76a | 1467 | + } |
0f6fb3c8 WD |
1468 | + if (xalp->count > 1) |
1469 | + qsort(xalp->items, xalp->count, sizeof (rsync_xa), rsync_xal_compare_names); | |
e5754c5f | 1470 | + return 0; |
bbdff76a WD |
1471 | +} |
1472 | + | |
0f6fb3c8 WD |
1473 | +/* Read the xattr(s) for this filename. */ |
1474 | +int get_xattr(const char *fname, statx *sxp) | |
bbdff76a | 1475 | +{ |
0f6fb3c8 WD |
1476 | + sxp->xattr = new(item_list); |
1477 | + *sxp->xattr = empty_xattr; | |
1478 | + if (rsync_xal_get(fname, sxp->xattr) < 0) { | |
1479 | + free_xattr(sxp); | |
1480 | + return -1; | |
1481 | + } | |
1482 | + return 0; | |
bbdff76a WD |
1483 | +} |
1484 | + | |
0f6fb3c8 | 1485 | +static int find_matching_xattr(item_list *xalp) |
bbdff76a | 1486 | +{ |
0f6fb3c8 WD |
1487 | + size_t i, j; |
1488 | + item_list *lst = rsync_xal_l.items; | |
bbdff76a WD |
1489 | + |
1490 | + for (i = 0; i < rsync_xal_l.count; i++) { | |
0f6fb3c8 WD |
1491 | + rsync_xa *rxas1 = lst[i].items; |
1492 | + rsync_xa *rxas2 = xalp->items; | |
1493 | + | |
bbdff76a | 1494 | + /* Wrong number of elements? */ |
0f6fb3c8 | 1495 | + if (lst[i].count != xalp->count) |
bbdff76a WD |
1496 | + continue; |
1497 | + /* any elements different? */ | |
0f6fb3c8 WD |
1498 | + for (j = 0; j < xalp->count; j++) { |
1499 | + if (rxas1[j].name_len != rxas2[j].name_len | |
1500 | + || rxas1[j].datum_len != rxas2[j].datum_len | |
64e98de1 | 1501 | + || strcmp(rxas1[j].name, rxas2[j].name)) |
bbdff76a | 1502 | + break; |
64e98de1 WD |
1503 | + if (rxas1[j].datum_len > MAX_FULL_DATUM) { |
1504 | + if (memcmp(rxas1[j].datum + 1, | |
1505 | + rxas2[j].datum + 1, | |
1506 | + MAX_DIGEST_LEN) != 0) | |
1507 | + break; | |
1508 | + } else { | |
1509 | + if (memcmp(rxas1[j].datum, rxas2[j].datum, | |
1510 | + rxas2[j].datum_len)) | |
1511 | + break; | |
1512 | + } | |
bbdff76a WD |
1513 | + } |
1514 | + /* no differences found. This is The One! */ | |
0f6fb3c8 WD |
1515 | + if (j == xalp->count) |
1516 | + return i; | |
bbdff76a | 1517 | + } |
0f6fb3c8 WD |
1518 | + |
1519 | + return -1; | |
bbdff76a WD |
1520 | +} |
1521 | + | |
0f6fb3c8 WD |
1522 | +/* Store *xalp on the end of rsync_xal_l */ |
1523 | +static void rsync_xal_store(item_list *xalp) | |
bbdff76a | 1524 | +{ |
0f6fb3c8 | 1525 | + item_list *new_lst = EXPAND_ITEM_LIST(&rsync_xal_l, item_list, RSYNC_XAL_LIST_INITIAL); |
de565f59 WD |
1526 | + /* Since the following call starts a new list, we know it will hold the |
1527 | + * entire initial-count, not just enough space for one new item. */ | |
49de5440 WD |
1528 | + *new_lst = empty_xattr; |
1529 | + (void)EXPAND_ITEM_LIST(new_lst, rsync_xa, xalp->count); | |
1530 | + memcpy(new_lst->items, xalp->items, xalp->count * sizeof (rsync_xa)); | |
0f6fb3c8 WD |
1531 | + new_lst->count = xalp->count; |
1532 | + xalp->count = 0; | |
bbdff76a WD |
1533 | +} |
1534 | + | |
0f6fb3c8 | 1535 | +/* Send the make_xattr()-generated xattr list for this flist entry. */ |
64e98de1 | 1536 | +int send_xattr(statx *sxp, int f) |
bbdff76a | 1537 | +{ |
0f6fb3c8 | 1538 | + int ndx = find_matching_xattr(sxp->xattr); |
64e98de1 WD |
1539 | + |
1540 | + /* Send 0 (-1 + 1) to indicate that literal xattr data follows. */ | |
1541 | + write_abbrevint(f, ndx + 1); | |
1542 | + | |
1543 | + if (ndx < 0) { | |
bbdff76a | 1544 | + rsync_xa *rxa; |
0f6fb3c8 | 1545 | + int count = sxp->xattr->count; |
64e98de1 | 1546 | + write_abbrevint(f, count); |
0f6fb3c8 | 1547 | + for (rxa = sxp->xattr->items; count--; rxa++) { |
27502d8d | 1548 | +#ifdef HAVE_LINUX_XATTRS |
64e98de1 WD |
1549 | + write_abbrevint(f, rxa->name_len); |
1550 | + write_abbrevint(f, rxa->datum_len); | |
27502d8d WD |
1551 | + write_buf(f, rxa->name, rxa->name_len); |
1552 | +#else | |
1553 | + /* We strip the rsync prefix from disguised namespaces | |
1554 | + * and put everything else in the user namespace. */ | |
dfe2b257 WD |
1555 | + if (HAS_PREFIX(rxa->name, RSYNC_PREFIX) |
1556 | + && rxa->name[RPRE_LEN] != '%') { | |
64e98de1 WD |
1557 | + write_abbrevint(f, rxa->name_len - RPRE_LEN); |
1558 | + write_abbrevint(f, rxa->datum_len); | |
27502d8d WD |
1559 | + write_buf(f, rxa->name + RPRE_LEN, rxa->name_len - RPRE_LEN); |
1560 | + } else { | |
64e98de1 WD |
1561 | + write_abbrevint(f, rxa->name_len + UPRE_LEN); |
1562 | + write_abbrevint(f, rxa->datum_len); | |
3f24a3a8 | 1563 | + write_buf(f, USER_PREFIX, UPRE_LEN); |
27502d8d | 1564 | + write_buf(f, rxa->name, rxa->name_len); |
3f24a3a8 | 1565 | + } |
27502d8d | 1566 | +#endif |
64e98de1 WD |
1567 | + if (rxa->datum_len > MAX_FULL_DATUM) |
1568 | + write_buf(f, rxa->datum + 1, MAX_DIGEST_LEN); | |
1569 | + else | |
1570 | + write_buf(f, rxa->datum, rxa->datum_len); | |
bbdff76a | 1571 | + } |
64e98de1 | 1572 | + ndx = rsync_xal_l.count; /* pre-incremented count */ |
49de5440 | 1573 | + rsync_xal_store(sxp->xattr); /* adds item to rsync_xal_l */ |
bbdff76a | 1574 | + } |
64e98de1 WD |
1575 | + |
1576 | + return ndx; | |
1577 | +} | |
1578 | + | |
1579 | +/* Return a flag indicating if we need to change a file's xattrs. If | |
1580 | + * "find_all" is specified, also mark any abbreviated xattrs that we | |
1581 | + * need so that send_xattr_request() can tell the sender about them. */ | |
1582 | +int xattr_diff(struct file_struct *file, statx *sxp, int find_all) | |
1583 | +{ | |
1584 | + item_list *lst = rsync_xal_l.items; | |
1585 | + rsync_xa *snd_rxa, *rec_rxa; | |
1586 | + int snd_cnt, rec_cnt; | |
1587 | + int cmp, same, xattrs_equal = 1; | |
1588 | + | |
77a7a0f0 | 1589 | + if (sxp && XATTR_READY(*sxp)) { |
64e98de1 WD |
1590 | + rec_rxa = sxp->xattr->items; |
1591 | + rec_cnt = sxp->xattr->count; | |
77a7a0f0 WD |
1592 | + } else { |
1593 | + rec_rxa = NULL; | |
1594 | + rec_cnt = 0; | |
64e98de1 WD |
1595 | + } |
1596 | + | |
1597 | + if (F_XATTR(file) >= 0) | |
1598 | + lst += F_XATTR(file); | |
1599 | + else | |
1600 | + lst = &empty_xattr; | |
1601 | + | |
1602 | + snd_rxa = lst->items; | |
1603 | + snd_cnt = lst->count; | |
1604 | + | |
1605 | + /* If the count of the sender's xattrs is different from our | |
1606 | + * (receiver's) xattrs, the lists are not the same. */ | |
1607 | + if (snd_cnt != rec_cnt) { | |
1608 | + if (!find_all) | |
1609 | + return 1; | |
1610 | + xattrs_equal = 0; | |
1611 | + } | |
1612 | + | |
1613 | + while (snd_cnt) { | |
1614 | + cmp = rec_cnt ? strcmp(snd_rxa->name, rec_rxa->name) : -1; | |
1615 | + if (cmp > 0) | |
1616 | + same = 0; | |
1617 | + else if (snd_rxa->datum_len > MAX_FULL_DATUM) { | |
1618 | + same = cmp == 0 && snd_rxa->datum_len == rec_rxa->datum_len | |
1619 | + && memcmp(snd_rxa->datum + 1, rec_rxa->datum + 1, | |
1620 | + MAX_DIGEST_LEN) == 0; | |
1621 | + /* Flag unrequested items that we need. */ | |
3fbc83e8 WD |
1622 | + if (!same && find_all && snd_rxa->datum[0] == XSTATE_ABBREV) |
1623 | + snd_rxa->datum[0] = XSTATE_TODO; | |
64e98de1 WD |
1624 | + } else { |
1625 | + same = cmp == 0 && snd_rxa->datum_len == rec_rxa->datum_len | |
1626 | + && memcmp(snd_rxa->datum, rec_rxa->datum, | |
1627 | + snd_rxa->datum_len) == 0; | |
1628 | + } | |
1629 | + if (!same) { | |
1630 | + if (!find_all) | |
1631 | + return 1; | |
1632 | + xattrs_equal = 0; | |
1633 | + } | |
1634 | + | |
1635 | + if (cmp <= 0) { | |
1636 | + snd_rxa++; | |
1637 | + snd_cnt--; | |
1638 | + } | |
1639 | + if (cmp >= 0) { | |
1640 | + rec_rxa++; | |
1641 | + rec_cnt--; | |
1642 | + } | |
1643 | + } | |
1644 | + | |
1645 | + if (rec_cnt) | |
1646 | + xattrs_equal = 0; | |
1647 | + | |
1648 | + return !xattrs_equal; | |
1649 | +} | |
1650 | + | |
1651 | +/* When called by the generator with a NULL fname, this tells the sender | |
1652 | + * which abbreviated xattr values we need. When called by the sender | |
9c18601b | 1653 | + * (with a non-NULL fname), we send all the extra xattr data it needs. */ |
64e98de1 WD |
1654 | +void send_xattr_request(const char *fname, struct file_struct *file, int f_out) |
1655 | +{ | |
1656 | + item_list *lst = rsync_xal_l.items; | |
1657 | + int j, cnt, prior_req = -1; | |
1658 | + rsync_xa *rxa; | |
1659 | + | |
1660 | + lst += F_XATTR(file); | |
1661 | + cnt = lst->count; | |
1662 | + for (rxa = lst->items, j = 0; j < cnt; rxa++, j++) { | |
3fbc83e8 | 1663 | + if (rxa->datum_len <= MAX_FULL_DATUM) |
64e98de1 | 1664 | + continue; |
3fbc83e8 WD |
1665 | + switch (rxa->datum[0]) { |
1666 | + case XSTATE_LOCAL: | |
1667 | + /* Items set locally will get cached by receiver. */ | |
1668 | + rxa->datum[0] = XSTATE_DONE; | |
1669 | + continue; | |
1670 | + case XSTATE_TODO: | |
1671 | + break; | |
1672 | + default: | |
1673 | + continue; | |
1674 | + } | |
64e98de1 WD |
1675 | + |
1676 | + /* Flag that we handled this abbreviated item. */ | |
3fbc83e8 | 1677 | + rxa->datum[0] = XSTATE_DONE; |
64e98de1 WD |
1678 | + |
1679 | + write_abbrevint(f_out, j - prior_req); | |
1680 | + prior_req = j; | |
1681 | + | |
1682 | + if (fname) { | |
1683 | + size_t len = 0; | |
1684 | + char *ptr; | |
1685 | + | |
1686 | + /* Re-read the long datum. */ | |
3fbc83e8 | 1687 | + if (!(ptr = get_xattr_data(fname, rxa->name, &len, 0))) |
64e98de1 WD |
1688 | + continue; |
1689 | + | |
1690 | + write_abbrevint(f_out, len); /* length might have changed! */ | |
1691 | + write_buf(f_out, ptr, len); | |
1692 | + free(ptr); | |
1693 | + } | |
1694 | + } | |
1695 | + | |
1696 | + write_byte(f_out, 0); /* end the list */ | |
1697 | +} | |
1698 | + | |
3fbc83e8 WD |
1699 | +/* Any items set locally by the generator that the receiver doesn't |
1700 | + * get told about get changed back to XSTATE_ABBREV. */ | |
1701 | +void xattr_clear_locals(struct file_struct *file) | |
1702 | +{ | |
1703 | + item_list *lst = rsync_xal_l.items; | |
1704 | + rsync_xa *rxa; | |
1705 | + int cnt; | |
1706 | + | |
1707 | + if (F_XATTR(file) < 0) | |
1708 | + return; | |
1709 | + | |
1710 | + lst += F_XATTR(file); | |
1711 | + cnt = lst->count; | |
1712 | + for (rxa = lst->items; cnt--; rxa++) { | |
1713 | + if (rxa->datum_len <= MAX_FULL_DATUM) | |
1714 | + continue; | |
1715 | + if (rxa->datum[0] == XSTATE_LOCAL) | |
1716 | + rxa->datum[0] = XSTATE_ABBREV; | |
1717 | + } | |
1718 | +} | |
1719 | + | |
9c18601b WD |
1720 | +/* When called by the sender, read the request from the generator and mark |
1721 | + * any needed xattrs with a flag that lets us know they need to be sent to | |
1722 | + * the receiver. When called by the receiver, reads the sent data and | |
1723 | + * stores it in place of its checksum. */ | |
64e98de1 WD |
1724 | +void recv_xattr_request(struct file_struct *file, int f_in) |
1725 | +{ | |
1726 | + item_list *lst = rsync_xal_l.items; | |
1727 | + char *old_datum, *name; | |
1728 | + rsync_xa *rxa; | |
1729 | + int rel_pos, cnt; | |
1730 | + | |
3fbc83e8 | 1731 | + if (F_XATTR(file) < 0) |
64e98de1 | 1732 | + exit_cleanup(RERR_STREAMIO); /* XXX */ |
3fbc83e8 | 1733 | + lst += F_XATTR(file); |
64e98de1 WD |
1734 | + |
1735 | + cnt = lst->count; | |
1736 | + rxa = lst->items; | |
1737 | + rxa -= 1; | |
1738 | + while ((rel_pos = read_abbrevint(f_in)) != 0) { | |
1739 | + rxa += rel_pos; | |
1740 | + cnt -= rel_pos; | |
1741 | + if (cnt < 0 || rxa->datum_len <= MAX_FULL_DATUM | |
3fbc83e8 | 1742 | + || rxa->datum[0] != XSTATE_ABBREV) |
64e98de1 WD |
1743 | + exit_cleanup(RERR_STREAMIO); /* XXX */ |
1744 | + | |
1745 | + if (am_sender) { | |
3fbc83e8 | 1746 | + rxa->datum[0] = XSTATE_TODO; |
64e98de1 WD |
1747 | + continue; |
1748 | + } | |
1749 | + | |
1750 | + old_datum = rxa->datum; | |
1751 | + rxa->datum_len = read_abbrevint(f_in); | |
1752 | + | |
1753 | + if (rxa->name_len + rxa->datum_len < rxa->name_len) | |
1754 | + out_of_memory("recv_xattr_request"); /* overflow */ | |
1755 | + rxa->datum = new_array(char, rxa->datum_len + rxa->name_len); | |
1756 | + if (!rxa->datum) | |
1757 | + out_of_memory("recv_xattr_request"); | |
1758 | + name = rxa->datum + rxa->datum_len; | |
1759 | + memcpy(name, rxa->name, rxa->name_len); | |
1760 | + rxa->name = name; | |
1761 | + free(old_datum); | |
1762 | + read_buf(f_in, rxa->datum, rxa->datum_len); | |
1763 | + } | |
bbdff76a WD |
1764 | +} |
1765 | + | |
bbdff76a | 1766 | +/* ------------------------------------------------------------------------- */ |
bbdff76a | 1767 | + |
0f6fb3c8 | 1768 | +/* receive and build the rsync_xattr_lists */ |
bbdff76a WD |
1769 | +void receive_xattr(struct file_struct *file, int f) |
1770 | +{ | |
0f6fb3c8 | 1771 | + static item_list temp_xattr = EMPTY_ITEM_LIST; |
64e98de1 WD |
1772 | + int count; |
1773 | + int ndx = read_abbrevint(f); | |
1774 | + | |
1775 | + if (ndx < 0 || (size_t)ndx > rsync_xal_l.count) { | |
1776 | + rprintf(FERROR, "receive_xattr: xa index %d out of" | |
1777 | + " range for %s\n", ndx, f_name(file, NULL)); | |
1778 | + exit_cleanup(RERR_STREAMIO); | |
1779 | + } | |
1780 | + | |
1781 | + if (ndx != 0) { | |
1782 | + F_XATTR(file) = ndx - 1; | |
1783 | + return; | |
1784 | + } | |
1785 | + | |
1786 | + if ((count = read_abbrevint(f)) != 0) { | |
1787 | + (void)EXPAND_ITEM_LIST(&temp_xattr, rsync_xa, count); | |
1788 | + temp_xattr.count = 0; | |
1789 | + } | |
1790 | + | |
1791 | + while (count--) { | |
1792 | + char *ptr, *name; | |
1793 | + rsync_xa *rxa; | |
1794 | + size_t name_len = read_abbrevint(f); | |
1795 | + size_t datum_len = read_abbrevint(f); | |
1796 | + size_t dget_len = datum_len > MAX_FULL_DATUM ? 1 + MAX_DIGEST_LEN : datum_len; | |
bcecb5e3 | 1797 | +#ifdef HAVE_LINUX_XATTRS |
64e98de1 | 1798 | + size_t extra_len = 0; |
bcecb5e3 | 1799 | +#else |
64e98de1 WD |
1800 | + size_t extra_len = am_root ? RPRE_LEN : 0; |
1801 | + if (dget_len + extra_len < dget_len) | |
1802 | + out_of_memory("receive_xattr"); /* overflow */ | |
27502d8d | 1803 | +#endif |
64e98de1 WD |
1804 | + if (dget_len + extra_len + name_len < dget_len) |
1805 | + out_of_memory("receive_xattr"); /* overflow */ | |
1806 | + ptr = new_array(char, dget_len + extra_len + name_len); | |
1807 | + if (!ptr) | |
1808 | + out_of_memory("receive_xattr"); | |
1809 | + name = ptr + dget_len + extra_len; | |
1810 | + read_buf(f, name, name_len); | |
1811 | + if (dget_len == datum_len) | |
1812 | + read_buf(f, ptr, dget_len); | |
1813 | + else { | |
3fbc83e8 | 1814 | + *ptr = XSTATE_ABBREV; |
64e98de1 WD |
1815 | + read_buf(f, ptr + 1, MAX_DIGEST_LEN); |
1816 | + } | |
3f24a3a8 | 1817 | +#ifdef HAVE_LINUX_XATTRS |
64e98de1 WD |
1818 | + /* Non-root can only save the user namespace. */ |
1819 | + if (!am_root && !HAS_PREFIX(name, USER_PREFIX)) { | |
1820 | + free(ptr); | |
1821 | + continue; | |
bbdff76a | 1822 | + } |
64e98de1 WD |
1823 | +#else |
1824 | + /* This OS only has a user namespace, so we either | |
1825 | + * strip the user prefix, or we put a non-user | |
1826 | + * namespace inside our rsync hierarchy. */ | |
1827 | + if (HAS_PREFIX(name, USER_PREFIX)) { | |
1828 | + name += UPRE_LEN; | |
1829 | + name_len -= UPRE_LEN; | |
1830 | + } else if (am_root) { | |
1831 | + name -= RPRE_LEN; | |
1832 | + name_len += RPRE_LEN; | |
1833 | + memcpy(name, RSYNC_PREFIX, RPRE_LEN); | |
1834 | + } else { | |
1835 | + free(ptr); | |
1836 | + continue; | |
bbdff76a | 1837 | + } |
64e98de1 WD |
1838 | +#endif |
1839 | + rxa = EXPAND_ITEM_LIST(&temp_xattr, rsync_xa, 1); | |
1840 | + rxa->name = name; | |
1841 | + rxa->datum = ptr; | |
1842 | + rxa->name_len = name_len; | |
1843 | + rxa->datum_len = datum_len; | |
bbdff76a | 1844 | + } |
bbdff76a | 1845 | + |
64e98de1 WD |
1846 | + ndx = rsync_xal_l.count; /* pre-incremented count */ |
1847 | + rsync_xal_store(&temp_xattr); /* adds item to rsync_xal_l */ | |
1848 | + | |
70891d26 | 1849 | + F_XATTR(file) = ndx; |
bbdff76a WD |
1850 | +} |
1851 | + | |
0f6fb3c8 WD |
1852 | +/* Turn the xattr data in statx into cached xattr data, setting the index |
1853 | + * values in the file struct. */ | |
1854 | +void cache_xattr(struct file_struct *file, statx *sxp) | |
bbdff76a | 1855 | +{ |
0f6fb3c8 | 1856 | + int ndx; |
bbdff76a | 1857 | + |
0f6fb3c8 WD |
1858 | + if (!sxp->xattr) |
1859 | + return; | |
bbdff76a | 1860 | + |
0f6fb3c8 | 1861 | + ndx = find_matching_xattr(sxp->xattr); |
64e98de1 | 1862 | + if (ndx < 0) |
49de5440 | 1863 | + rsync_xal_store(sxp->xattr); /* adds item to rsync_xal_l */ |
bbdff76a | 1864 | + |
70891d26 | 1865 | + F_XATTR(file) = ndx; |
bbdff76a WD |
1866 | +} |
1867 | + | |
acf4467b WD |
1868 | +static int rsync_xal_set(const char *fname, item_list *xalp, |
1869 | + const char *fnamecmp, statx *sxp) | |
bbdff76a | 1870 | +{ |
0f6fb3c8 | 1871 | + rsync_xa *rxas = xalp->items; |
526184b9 | 1872 | + ssize_t list_len; |
3fbc83e8 WD |
1873 | + size_t i, len; |
1874 | + char *name, *ptr, sum[MAX_DIGEST_LEN]; | |
1875 | + int name_len, ret = 0; | |
526184b9 WD |
1876 | + |
1877 | + /* This puts the current name list into the "namebuf" buffer. */ | |
64e98de1 | 1878 | + if ((list_len = get_xattr_names(fname)) < 0) |
526184b9 | 1879 | + return -1; |
bbdff76a | 1880 | + |
0f6fb3c8 | 1881 | + for (i = 0; i < xalp->count; i++) { |
3fbc83e8 WD |
1882 | + name = rxas[i].name; |
1883 | + | |
1884 | + if (XATTR_ABBREV(rxas[i])) { | |
1885 | + /* See if the fnamecmp version is identical. */ | |
1886 | + len = name_len = rxas[i].name_len; | |
1887 | + if ((ptr = get_xattr_data(fnamecmp, name, &len, 1)) == NULL) { | |
1888 | + still_abbrev: | |
1889 | + if (am_generator) | |
1890 | + continue; | |
3e6568cf WD |
1891 | + rprintf(FERROR, "Missing abbreviated xattr value, %s, for %s\n", |
1892 | + rxas[i].name, full_fname(fname)); | |
1893 | + ret = -1; | |
1894 | + continue; | |
1895 | + } | |
3fbc83e8 WD |
1896 | + if (len != rxas[i].datum_len) { |
1897 | + free(ptr); | |
1898 | + goto still_abbrev; | |
1899 | + } | |
1900 | + | |
1901 | + sum_init(checksum_seed); | |
1902 | + sum_update(ptr, len); | |
1903 | + sum_end(sum); | |
1904 | + if (memcmp(sum, rxas[i].datum + 1, MAX_DIGEST_LEN) != 0) { | |
1905 | + free(ptr); | |
1906 | + goto still_abbrev; | |
1907 | + } | |
1908 | + | |
acf4467b WD |
1909 | + if (fname == fnamecmp) |
1910 | + ; /* Value is already set when identical */ | |
1911 | + else if (sys_lsetxattr(fname, name, ptr, len) < 0) { | |
3fbc83e8 WD |
1912 | + rsyserr(FERROR, errno, |
1913 | + "rsync_xal_set: lsetxattr(\"%s\",\"%s\") failed", | |
1914 | + fname, name); | |
1915 | + ret = -1; | |
acf4467b WD |
1916 | + } else /* make sure caller sets mtime */ |
1917 | + sxp->st.st_mtime = (time_t)-1; | |
3fbc83e8 WD |
1918 | + |
1919 | + if (am_generator) { /* generator items stay abbreviated */ | |
1920 | + if (rxas[i].datum[0] == XSTATE_ABBREV) | |
1921 | + rxas[i].datum[0] = XSTATE_LOCAL; | |
1922 | + free(ptr); | |
3e6568cf | 1923 | + continue; |
3fbc83e8 WD |
1924 | + } |
1925 | + | |
1926 | + memcpy(ptr + len, name, name_len); | |
1927 | + free(rxas[i].datum); | |
1928 | + | |
1929 | + rxas[i].name = name = ptr + len; | |
1930 | + rxas[i].datum = ptr; | |
1931 | + continue; | |
64e98de1 | 1932 | + } |
3fbc83e8 WD |
1933 | + |
1934 | + if (sys_lsetxattr(fname, name, rxas[i].datum, rxas[i].datum_len) < 0) { | |
892d2287 WD |
1935 | + rsyserr(FERROR, errno, |
1936 | + "rsync_xal_set: lsetxattr(\"%s\",\"%s\") failed", | |
3fbc83e8 | 1937 | + fname, name); |
0f6fb3c8 | 1938 | + ret = -1; |
acf4467b WD |
1939 | + } else /* make sure caller sets mtime */ |
1940 | + sxp->st.st_mtime = (time_t)-1; | |
bbdff76a | 1941 | + } |
526184b9 WD |
1942 | + |
1943 | + /* Remove any extraneous names. */ | |
1944 | + for (name = namebuf; list_len > 0; name += name_len) { | |
1945 | + name_len = strlen(name) + 1; | |
1946 | + list_len -= name_len; | |
1947 | + | |
e3cd70c8 WD |
1948 | +#ifdef HAVE_LINUX_XATTRS |
1949 | + /* We always ignore the system namespace, and non-root | |
1950 | + * ignores everything but the user namespace. */ | |
1951 | + if (am_root ? HAS_PREFIX(name, SYSTEM_PREFIX) | |
1952 | + : !HAS_PREFIX(name, USER_PREFIX)) | |
1953 | + continue; | |
1954 | +#endif | |
1955 | + | |
526184b9 WD |
1956 | + for (i = 0; i < xalp->count; i++) { |
1957 | + if (strcmp(name, rxas[i].name) == 0) | |
1958 | + break; | |
1959 | + } | |
1960 | + if (i == xalp->count) { | |
3fbc83e8 | 1961 | + if (sys_lremovexattr(fname, name) < 0) { |
526184b9 WD |
1962 | + rsyserr(FERROR, errno, |
1963 | + "rsync_xal_clear: lremovexattr(\"%s\",\"%s\") failed", | |
1964 | + fname, name); | |
1965 | + ret = -1; | |
acf4467b WD |
1966 | + } else /* make sure caller sets mtime */ |
1967 | + sxp->st.st_mtime = (time_t)-1; | |
526184b9 WD |
1968 | + } |
1969 | + } | |
1970 | + | |
0f6fb3c8 | 1971 | + return ret; |
bbdff76a WD |
1972 | +} |
1973 | + | |
0f6fb3c8 | 1974 | +/* Set extended attributes on indicated filename. */ |
acf4467b WD |
1975 | +int set_xattr(const char *fname, const struct file_struct *file, |
1976 | + const char *fnamecmp, statx *sxp) | |
bbdff76a | 1977 | +{ |
0f6fb3c8 | 1978 | + int ndx; |
0f6fb3c8 | 1979 | + item_list *lst = rsync_xal_l.items; |
bbdff76a | 1980 | + |
93d6ca6d WD |
1981 | + if (dry_run) |
1982 | + return 1; /* FIXME: --dry-run needs to compute this value */ | |
1983 | + | |
8889f85e WD |
1984 | + if (read_only || list_only) { |
1985 | + errno = EROFS; | |
1986 | + return -1; | |
1987 | + } | |
1988 | + | |
70891d26 | 1989 | + ndx = F_XATTR(file); |
acf4467b | 1990 | + return rsync_xal_set(fname, lst + ndx, fnamecmp, sxp); |
bbdff76a WD |
1991 | +} |
1992 | + | |
1993 | +#endif /* SUPPORT_XATTRS */ |